Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan

Ekstraksi dan Uji Stabilitas Daun Teh Hijau (Camellia sinensis L.) sebagai Eye Stick Antioksidan

2026-04-21T16:43:06+07:00

The eye area is the part of the face that most quickly shows signs of fatigue which is influenced by various factors. Green Tea Leaves (Camellia sinensis L.) are known as one of the plants that have high antioxidant content. The antioxidant content in green tea leaves can protect the skin from free radicals that can accelerate the appearance of signs of fatigue, including in the eye area. This study aims to develop an innovative cosmetic preparation in the form of an eye stick and determine the formula with variations in the concentration of Green Tea (Camellia sinensis L.) leaf extract that has the best antioxidant activity and good stability of the preparation. This study is an experimental study with two variations of extract concentration, namely 1% and 6%, which are obtained through an extraction process using 96% ethanol. The eye stick preparation was evaluated through organoleptic tests, pH, homogeneity, adhesion, melting point, and stability. Antioxidant activity was tested using the DPPH method with absorbance measurements using a UV-Vis spectrophotometer. The results showed that the green tea leaf eye stick preparation had good stability and antioxidant activity in F2 with an extract concentration of 6%, with an IC50 value of 57.2222 ppm, which is categorized as a strong antioxidant.

Efektifitas Layanan Bimbingan Kelompok untuk Meningkatkan Kepercayaan Diri Siswa melalui Teknik Menulis Ekspresif pada Siswa Kelas X SMA Negeri 2 Samarinda Tahun Ajaran 2025

2026-04-22T16:59:28+07:00

This research is motivated by students' low self-confidence, demonstrated by a lack of courage to express opinions, participation in learning, and social interaction in the classroom. Self-confidence is an important aspect of students' personal development, influencing their learning success and adjustment. This study aims to determine the difference in students' self-confidence levels before and after being given group guidance services using expressive writing techniques. This research used an experimental research design with a one-group pretest-posttest design. The sample consisted of 8 students selected using a purposive sampling technique. Based on the pretest and posttest data, the mean score before treatment was 74, which is considered low, and after treatment, it showed an increase with a mean score of 84. The paired t-test analysis obtained a significance value of 0.001 <0.05, indicating a significant difference in students' self-confidence levels before and after being given group guidance services using expressive writing techniques for 7 meetings. Thus, group guidance services using expressive writing techniques have proven effective in increasing the self-confidence of 10th-grade students at SMA Negeri 2 Samarinda.

Analisis Tingkat Kerawanan Seismik Provinsi di Pulau Sumatera Menggunakan Parameter Gutenberg-Richter

2026-04-23T12:10:22+07:00

Sumatra Island has complex geological conditions as it is located in a collision zone between the northward-moving Indo-Australian Plate and the relatively stable Eurasian Plate. The interaction of these two plates forms two main tectonic structures: the subduction zone off the western coast of Sumatra and the Sumatra Fault Zone (SFZ). The latter exhibits varying seismic activity that has not yet been clearly mapped. This study aims to assess the level of seismic vulnerability across Sumatra Island by dividing the region into nine zones using the a-value and b-value parameters based on the Gutenberg-Richter relationship. Earthquake data from the USGS and IRIS catalogs for the period 1924-2024 were processed through a declustering procedure and subsequently analyzed using the Maximum Likelihood method with the assistance of ZMAP v6 software. The results show that the a-value across Sumatra ranges from 2.1 to 5.1, while the b-value ranges from 0.545 to 0.868. North Sumatra records the highest a- and b-values, at 3.82 and 0.786, respectively. In contrast, West Sumatra shows the lowest values, with an a-value of 2.9 and a b-value of 0.623. These findings not only reveal variations in seismic activity across Sumatra Island, but also provide a more detailed zonation of seismic hazard based on the Gutenberg-Richter parameters, which can serve as a basis for disaster mitigation planning and the development of earthquake-resistant infrastructure.

Analisis Nilai-nilai Profil Pelajar Pancasila dalam Novel “Tentang Kamu” Karya Tere Liye dan Relevansinya terhadap Pembelajaran Bahasa Indonesia

2026-04-23T21:00:51+07:00

This study aims to describe: 1) the values of the Pancasila Student Profile contained in the novel "Tentang Kamu" by Tere Liye; and 2) the relevance of the values of the Pancasila Student Profile to Indonesian language learning. The type of research used is a qualitative approach with a descriptive method. The research data comes from the novel "Tentang Kamu" by Tere Liye. The data collection technique in this study uses reading and note-taking techniques. The data analysis techniques in this study are data reduction, presentation, and drawing conclusions. The results of this study indicate that there are values of the Pancasila Student Profile in the novel "Tentang Kamu". The values of faith, devotion to God Almighty, and noble character, global diversity, mutual cooperation, independence, critical reasoning, and creativity. The results of the study show that the values of the Pancasila Student Profile in the novel "Tentang Kamu" are represented through characterization, plot, conflict, setting, and dialogue between characters. The values of faith and noble character are evident in Sri Ningsih's patient, sincere, and respectful character. Mutual cooperation (gotong royong) is evident through the social relationships between characters who help each other, while independence is reflected in the main character's struggle to survive without relying on others. Critical reasoning emerges in the process of investigating Sri Ningsih's life journey, while creativity is evident in the character's ability to find solutions to various problems. The value of global diversity is reflected in cross-cultural interactions that demonstrate tolerance and respect for differences. These findings are relevant to the Indonesian language learning outcomes for high school students in Phase F of the Independent Curriculum, as they support the strengthening of literacy and character development of students according to the dimensions of the Pancasila Student Profile.

Pengaruh Model Problem Based Learning Berbantuan Media Chemsketch terhadap Hasil Belajar Siswa pada Materi Hidrokarbon

2026-04-25T11:46:25+07:00

This study aims to determine whether student learning outcomes taught using the Chemsketch-assisted problem-based learning model are higher than those taught using conventional learning, and to determine student responses to the model and media applied. This study used a quasi-experimental design with a pretest-posttest control group design. Two classes were selected using purposive sampling: an experimental class using Chemsketch-assisted problem-based learning, and a control class using conventional learning. The results showed an average learning outcome of 86.80 for the experimental class and 68.05 for the control class. The analysis showed that the data were normally distributed and homogeneous. Hypothesis testing revealed a significant difference between the learning outcomes of the two classes, with the class using Chemsketch-assisted problem-based learning achieving higher learning outcomes than the conventional class. Student responses to the model and media application were in the very good category, with a percentage of 82.73%. These findings indicate that Chemsketch-assisted problem-based learning is effective in improving student learning outcomes in hydrocarbon compounds.

Strategi Penerapan Teknik Zigzag sebagai Solusi Terbaik dalam Pengeritingan Rambut Modern

2026-04-25T19:45:20+07:00

The hair beauty industry continues to develop along with the increasing public demand for an aesthetic, modern appearance, and in line with developing trends. One innovation in the field of hair styling is the zigzag pattern hair curling technique that offers more natural, voluminous, and dynamic curling results compared to conventional techniques. This study aims to analyze the strategy of implementing the zigzag technique as an innovation in modern hair curling through a literature study approach. The research method used is qualitative with a literature review research type. Data were obtained through searching various relevant scientific sources, such as national and international journals, scientific articles, and reference books that discuss modern hair curling techniques, hair styling innovations, and hair health. Literature searches were conducted through Google Scholar, GARUDA, and ScienceDirect using keywords that are appropriate to the research topic. Data analysis was carried out through the stages of data reduction, grouping findings, synthesizing information, and drawing descriptive conclusions. The results of the study indicate that the zigzag technique has advantages in producing a more natural, flexible, and voluminous hair appearance compared to conventional curling techniques. Furthermore, this technique has the potential to increase the durability of curls and minimize the risk of hair damage when applied with proper procedures and the use of appropriate hair protection products. The success of the zigzag technique is influenced by the competence of the hairstylist, the use of adequate tools, the selection of hair care products, and an effective service promotion strategy. Therefore, the zigzag technique can be seen as a relevant innovation in the development of modern salon services and beauty education.

Analisis Gaya Bahasa dalam Acara Stand Up Comedy Season 10 di Kompas TV

2026-04-26T12:04:33+07:00

This study aims to analyze the forms and functions of figurative language in Stand Up Comedy Indonesia Season 10, as well as their implications for audience reception. This study uses a descriptive qualitative approach with stylistic and pragmatic perspectives on comedians' humorous utterances sourced from 24 videos on the Kompas TV YouTube channel. The results indicate that there are four main forms of figurative language: comparison, affirmation, opposition, and satire, with satire, particularly irony, dominating. Functionally, figurative language is used to enhance the story's appeal, create humorous effects, build emotional closeness, strengthen the comedian's identity, and convey social criticism, with humor being the most dominant function. These findings indicate that figurative language plays a role not only as an aesthetic element but also as a pragmatic strategy in creating rhetorical effects through deviations in meaning, reversals of expectations, and the conveyance of implicit meanings. Thus, the effectiveness of humor in stand-up comedy is determined by the synergy between stylistic and pragmatic aspects that shape audience responses and interpretations.

Pengaruh Dukungan Keluarga terhadap Keputusan Karir dengan Efikasi Diri sebagai Variabel Moderator pada Siswa SMA Negeri 4 Samarinda

2026-04-27T12:53:43+07:00

This study aims to analyze the influence of family support on students' career decisions, with self-efficacy as a moderating variable, in eleventh-grade students at SMA Negeri 4 Samarinda. This study used a quantitative approach with an associative approach. The study population was 384 students, with a sample of 162 students determined through proportional random sampling. Data collection was conducted using a Likert scale instrument covering family support, career decisions, and self-efficacy. Data analysis techniques included descriptive analysis, normality testing, and hypothesis testing using Moderated Regression Analysis (MRA) with the help of SPSS. The results showed that family support significantly influenced students' career decisions (p < 0.05). Self-efficacy was shown to act as a significant moderator by strengthening the relationship between family support and career decisions. These findings indicate that students' career decisions are influenced by both external and internal factors simultaneously, with self-efficacy amplifying the influence of family support on the career decision-making process. These results emphasize the importance of strengthening the role of the family and developing self-efficacy in career guidance services in schools.

Pengaruh Model Problem Based Learning (PBL) Berbantuan Media Wordwall terhadap Keterampilan Berpikir Kritis Siswa pada Mata Pelajaran IPA di Kelas VII SMP Negeri 6 Samarinda

2026-04-28T14:54:19+07:00

This research is motivated by the lack of application of varied learning models, causing low critical thinking skills of students in science learning, so the Problem Based Learning (PBL) model assisted by wordwall is used as a solution. This study aims to determine the effect of the Problem Based Learning (PBL) model assisted by wordwall media on critical thinking skills of seventh grade students of SMP Negeri 6 Samarinda. This research is a quantitative study using a quasi-experimental method with a non-equivalent control group design. The research sample consisted of classes VII C (experimental) and VII D (control), each with 21 students. Data analysis was carried out through normality tests, homogeneity tests, independent sample t-tests and N-Gain tests using SPSS version 25 data processing tools. The results showed a significant difference between the two classes (p = 0.001 < 0.05). The average N-Gain of the experimental class was 0.549 (medium category), higher than the control class of 0.281 (low category). These findings indicate that the implementation of problem-based learning assisted by word walls effectively improves students' critical thinking skills in science learning.

Pengembangan E-Modul Terintegrasi Literasi Sains melalui Pendekatan Deep Learning pada Pokok Bahasan Ikatan Kimia

2026-04-28T15:07:26+07:00

The low level of students' understanding of concepts and scientific literacy in chemical bonding material indicates the need for teaching materials that can facilitate meaningful learning. This study aims to develop an integrated e-module of scientific literacy through a deep learning approach in chemical bonding material, as well as to determine the level of feasibility, improvement in learning outcomes, and student responses to the developed product. The study used the Research and Development (R&D) method with a 4D model that includes define, design, develop, and disseminate. The research subjects consisted of three validators and 36 students of grade X of SMA Negeri 1 Deli Tua, Deli Serdang, North Sumatra. The research instruments were validation sheets, learning outcome tests, and student response questionnaires. The results showed that the e-module obtained a feasibility percentage of 88.93% from material experts, and 89.44% from media experts with a very valid category. The use of the e-module resulted in an increase in learning outcomes with an N-Gain value of 0.72 (high category), and obtained a student response of 83.31% (positive category). Thus, the integrated e-module on scientific literacy through a deep learning approach is suitable for use as a teaching material to support learning about chemical bonds.

Implementasi Buku Ajar Kimia SMA Berbasis Masalah terhadap Peningkatan Kemampuan Berpikir Kritis Siswa pada Materi Laju Reaksi

2026-05-01T13:55:57+07:00

This study aims to determine the effect of implementing problem-based high school chemistry textbooks on improving students' critical thinking skills on reaction rate material. The research was conducted at MAS Al-Washliyah 26 Tinokkah in the even semester of the 2025/2026 academic year. The sample consisted of 20 students from class XI MIPA 2 as the experimental class and 20 students from class XI MIPA 1 as the control class selected using purposive sampling technique. The research design used was pretest-posttest control group design. The research instruments consisted of a critical thinking skills essay test (5 questions/25 items) that had been validated (r count = 0.901) and a student response questionnaire. The results showed that there was a significant effect of implementing problem-based chemistry textbooks on students' critical thinking skills with a Sig. (2-tailed) value = 0.001 (p < 0.05). The improvement in critical thinking skills in the experimental class was in the high category (N-Gain = 0.87), while the control class was in the medium category (N-Gain = 0.65). Student responses to learning using problem-based textbooks showed positive categories with an average of 96.6% on the understanding indicator and 94.28% on the interest indicator. Thus, the implementation of problem-based high school chemistry textbooks is effective in improving students' critical thinking skills on reaction rate material.

Efektivitas Konseling Kelompok dengan Teknik Restrukturisasi Kognitif dalam Mengurangi Isolasi Sosial pada Siswa Korban Bullying di SMA Tunas Kelapa Samarinda

2026-05-01T18:49:40+07:00

This study aims to determine the effectiveness of Cognitive Behavioral Therapy (CBT)-based group counseling services with cognitive restructuring techniques in reducing the level of social isolation in students who are victims of bullying. This study uses a quantitative approach with a pre-experimental design in the form of a one-group pretest-posttest design. The research subjects were 3 students selected using a purposive sampling technique with the criteria of students being victims of bullying, having a high level of social isolation based on the pretest results, and being willing to participate in the entire series of interventions. The research instrument used a social isolation scale questionnaire in the form of a Likert scale that had been tested for content validity through expert judgment and its reliability using the Cronbach's Alpha coefficient. Measurements were taken before (pretest) and after (posttest) the treatment was given. The intervention was given in the form of CBT-based group counseling with cognitive restructuring techniques implemented in several sessions, including identifying negative thoughts due to bullying, cognitive restructuring to replace irrational thoughts with more adaptive ones, and social skills training to improve student interaction. Data were analyzed using a paired sample t-test with a significance level of 0.05. The results showed a difference in social isolation scores between the pretest and posttest, with a significance value of 0.003 (<0.05). The average pretest score of 182.00 (very high) decreased to 108.33 in the posttest (moderate). Therefore, CBT-based group counseling services with cognitive restructuring techniques statistically demonstrated a decrease in social isolation levels in the study subjects.

Perbedaan Bimbingan Kelompok Teknik Symbolic Model dengan Bimbingan Kelompok Konvensional dalam Peningkatan Efikasi Diri Santriwati

2026-05-02T19:45:04+07:00

This study aims to determine the differences between group guidance services with symbolic model techniques and conventional group guidance services in improving the self-efficacy of female students at Ibnu Hasan Islamic Boarding School in Samarinda. This study uses a quantitative approach with a quasi-experimental method with a non-equivalent control group design. The research subjects were 8 female students who were included in the low self-efficacy category based on the self-efficacy scale. They were divided into two groups, namely the experimental group and the control group, each consisting of 4 people. Data collection techniques used a self-efficacy scale, observation, and interviews. The results of the study showed that there was a significant difference in the level of self-efficacy between the experimental group and the control group after being given treatment based on the results of the independent samples t-test, with a sig. (2-tailed) value of 0.001 (p <0.05). The average posttest score of the experimental group was 99.8, higher than the control group of 81.0. Therefore, this study concludes that there is a significant difference between group guidance using the symbolic model and conventional group guidance in improving the self-efficacy of female students. This approach can be an alternative service for guidance and counseling teachers in schools to address low self-efficacy in female students.

Adaptasi Burung Papua Vogelkop Superb Bird-of-Paradise dan Mambruk Victoria sebagai Sumber Ide Tata Rias Fantasi

2026-05-05T00:49:26+07:00

Indonesia's biodiversity, particularly endemic birds from Papua, possesses high aesthetic potential as a source of inspiration in the development of artistic works, including fantasy makeup. This study aims to develop a fantasy makeup design based on the visual adaptation of the Vogelkop Superb Bird-of-Paradise and the Mambruk Victoria. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of the stages of analysis, design, development, implementation, and evaluation. The product developed was a fantasy makeup design that adapted the birds’ visual characteristics, including colors, textures, crown shapes, and feather patterns into facial makeup, body painting, headpieces, and costumes. The results showed that the product achieved a very good quality level with a percentage score of 93.68%. The instrument validity obtained an Aiken’s V value of 0.86, while the reliability test showed a Cronbach’s Alpha value of 0.988, indicating that the instrument was highly valid and reliable. This study demonstrates that visual adaptation of fauna can serve as an effective source of inspiration in developing innovative, aesthetic, and locally inspired fantasy makeup designs.

Penerapan Konseling Kelompok dengan Teknik Self Management untuk Mengurangi Kecanduan Media Sosial Siswa Kelas VIII SMP Negeri 1 Bontang

2026-05-05T01:18:16+07:00

This study aims to determine the effectiveness of group counseling with self-management techniques in reducing social media addiction in students of SMP Negeri 1 Bontang. The experimental design used in this study was a one-group pretest-posttest. The treatment was carried out in accordance with group counseling with self-management techniques which consists of four stages, namely self-monitoring, self-commitment (self-contracting), self-evaluation, and reinforcement, elimination, or punishment (self-reward). The study population was 34 students, with a sample of 6 students who had a high level of social media addiction. The sampling technique used was purposive sampling. Indicators used to measure the level of social media addiction of students included virtual tolerance, virtual communication, virtual problems, and virtual information. The results showed that the average score of social media addiction decreased from 107 (high category) at the pretest to 46.3 (low category) at the posttest. All research subjects experienced a consistent decrease in scores after participating in the counseling series. The results of the paired sample t-test confirmed these findings with a significance value of 0.001 (p < 0.05), indicating a statistically significant difference between social media addiction scores before and after treatment. Overall, it can be concluded that group counseling with self-management techniques can be applied to reduce students' social media addiction.

Efektivitas Bimbingan Klasikal dengan Media Film Pendek untuk Meningkatkan Empati Siswa di SMP Negeri 21 Samarinda

2026-05-05T01:30:48+07:00

This study aims to determine the effectiveness of classical guidance services using short film media in increasing students' empathy at SMP Negeri 21 Samarinda. This study uses a quantitative approach with a quasi-experimental design through a non-randomized control group pretest-posttest design. The research sample was determined using a purposive sampling technique involving eighth-grade students of SMP Negeri 21 Samarinda who were divided into an experimental group and a control group. Data were collected using a Likert-style empathy scale that measures aspects of perspective taking, empathic concern, personal distress, and fantasy. Data analysis was carried out using SPSS 27 through normality tests, homogeneity tests, paired sample t-tests, and independent sample t-tests. The results showed that there was an increase in the level of empathy in the experimental group after receiving classical guidance services with short film media. The calculation of the N-Gain score in the experimental group was 60.5% which was included in the fairly effective category. The results of statistical tests showed a significant difference between the pretest and posttest scores in the experimental group, as well as differences in results between the experimental group and the control group. Thus, classical guidance services using short films are effective in increasing student empathy at SMP Negeri 21 Samarinda.

Penggunaan Model Pembelajaran Discovery Learning Berbantuan Media PhET Simulation untuk Meningkatkan Motivasi dan Hasil Belajar Siswa pada Materi Asam Basa

2026-05-05T16:10:31+07:00

This study aims to analyze the effect of discovery learning model assisted by PhET simulation media on students' motivation and learning outcomes in acid-base material, and to determine the correlation between the two variables. The study used a quantitative approach with a quasi-experimental type and a pretest–posttest control group design. The study sample consisted of two grades of eleventh grade at SMA Negeri 1 Percut Sei Tuan which were selected randomly, namely the experimental class and the control class. The research instruments were a learning outcome test and a learning motivation questionnaire. The results showed that the increase in students' learning motivation in the experimental class was in the high category (N-Gain = 0.78), while the control class was in the medium category (N-Gain = 0.48). The increase in students' learning outcomes in the experimental class was also higher (N-Gain = 0.79) than the control class (N-Gain = 0.54). The results of the hypothesis test showed that there was a significant difference in motivation and learning outcomes between the experimental class and the control class (sig. <0.05). In addition, there was a positive and significant correlation between learning motivation and learning outcomes with a correlation coefficient of 0.577 which was included in the medium category. Based on the research results, the discovery learning model assisted by PhET simulation significantly improved student motivation and learning outcomes in acid-base topics.

Analisis Keanekaragaman Tumbuhan Famili Araceae di Taman Wisata Alam Suranadi, Lombok Barat

2026-05-29T03:28:04+07:00

The Araceae family (taro) is a group of understory plants that have high diversity and play an important role ecologically and economically, but some of its species are still less well known by the public. This study aims to identify the types of plants of the Araceae family and analyze their diversity levels in the Suranadi Nature Tourism Park (TWA). The study used a descriptive exploratory method with a quadrat transect technique at three observation stations. Each station consisted of two plots measuring 5 × 5 m, resulting in six observation plots. The results of the study found 11 species of Araceae belonging to 8 genera with a total of 118 individuals. The genus with the largest number of species is Syngonium (3 species), followed by Dieffenbachia (2 species), while the other genera each consist of 1 species. The Shannon-Wiener diversity index value ranged from 0.772–1.491 with a low to moderate category. Environmental conditions of 26–28°C, 55–75% humidity, and a soil pH of 5.5–6.0 indicate that the Suranadi Natural Park (TWA) offers suitable habitat conditions for the growth of Araceae. The results of this study indicate that the Suranadi Natural Park has a relatively high diversity of Araceae and can serve as a source of information for conservation, education, and area management.

Model Discovery Learning Berbantuan Media Video Edukasi dan Dampaknya terhadap Kemampuan Berpikir Kreatif Matematis

2026-05-22T16:39:08+07:00

This study aims to determine the effect of discovery learning model assisted by educational videos on students' mathematical creative thinking skills. This study uses a quantitative approach with a quasi-experimental type and a pretest-posttest nonequivalent control group design. The study was conducted at SMPN 13 Mataram on grade VII students in the 2025/2026 academic year. The research sample consisted of 84 students consisting of 42 students of grade VII D as the experimental class and 42 students of grade VII F as the control class. The sampling technique used purposive sampling. Data collection techniques were carried out through mathematical creative thinking ability tests and interviews. Data were analyzed using the Shapiro-Wilk normality test, Levene's homogeneity test, and independent sample t-test. The results showed that the average pre-test score of the experimental class was 47.31, increasing to 83.31 in the post-test, while the average pre-test score of the control class was 34.71, increasing to 70.57 in the post-test. The results of the hypothesis test on the post-test scores of the experimental and control classes showed a significance value of 0.000 <0.05, thus H₀ was rejected and H₁ was accepted. This indicates a significant difference between the mathematical creative thinking abilities of students who learned using the discovery learning model assisted by educational videos and those who learned using conventional learning. Thus, the discovery learning model assisted by educational videos significantly influenced the mathematical creative thinking abilities of seventh-grade students at SMPN 13 Mataram.

Tingkat Kondisi Fisik Pemain Futsal Putra di MA Negeri 1 Mataram Tahun 2026

2026-07-09T23:15:39+07:00

Physical condition is a key factor determining futsal players' performance, as matches are played at high intensity and demand optimal aerobic and anaerobic capabilities. However, the physical condition profiles of school-level futsal athletes are rarely comprehensively evaluated to serve as a basis for training program design. This study aims to describe the physical condition levels of male futsal players at MAN 1 Mataram. A quantitative approach with a descriptive design was employed. The sample consisted of 16 players selected using total sampling. Data collection involved the Multistage Fitness Test (MFT) to measure VO₂Max, a 30-meter sprint test, the Illinois agility test, a 60-second push-up test, and a vertical jump test. Data were analyzed using descriptive statistics specifically mean values and percentages based on the norms for each test instrument. The results showed that leg muscle explosive power averaged 51.56 cm (predominantly "good" category), sprint speed averaged 4.15 seconds ("good" category), agility averaged 17.14 seconds ("fair" category), and upper-body muscle strength averaged 31.56 repetitions. Meanwhile, the mean VO₂Max was 40.87 ± 3.37 ml/kg/min, with the majority of players (68.8%) falling into the "poor" category. These findings indicate that while the players possess adequate anaerobic performance capabilities to support explosive actions, they lack the aerobic capacity necessary to sustain match intensity throughout the game. Consequently, these results can serve as a foundation for developing a more targeted physical training program that emphasizes improving aerobic endurance through structured training, without neglecting the development of other physical fitness components.

Identifikasi Jenis Makroalga di Pantai Pandanan Kabupaten Lombok Utara

2026-06-04T03:59:01+07:00

Besides being a tourist destination, Pandanan Beach has considerable marine potential. One of the marine potentials that is still minimally utilized in this location but has strategic value is macroalgae. This study aims to identify the types of macroalgae found in Pandanan Beach, North Lombok Regency. The type of research used is descriptive research that describes the types of macroalgae around Pandanan Beach. Determination of the research location used a purposive sampling method at 3 stations with a distance between stations of 10 meters. Sampling was carried out using a 1 m × 1 m quadrant, while the distance between the quadrants was determined using a 100 meter line transect. Samples obtained along the transect were then put into plastic bags and given a 75% alcohol solution for further identification. The identification results showed that there were 16 types of macroalgae in Pandanan Beach. These species fall into three divisions: Chlorophyta (6 species) (Chaetomorpha crassa, Halimeda macroloba, Halimeda monile, Boergesenia forbesii, Dictyosphaeria versluysii, and Ulva intestinalis), Phaeophyta (5 species) (Padina australis, Turbinaria decurrens, Sargassum polycystum, Hydroclathrus sp., and Dictyota sp.), and Rhodophyta (5 species) (Eucheuma sp., Gracilaria verrucosa, Galaxaura arborea, Laurencia papillosa, and Gelidium spinosum).

Pengembangan e-Modul Berbasis Pendekatan STEM dan Etnosains Menggunakan Google Sites pada Materi Asam Basa

2026-05-05T20:39:52+07:00

This study aims to develop an e-module based on STEM and ethnoscience approaches using Google Sites on acid-base material, as well as to determine the feasibility, student responses, and improvement of student learning outcomes at St. Maria Tarutung Private High School. The study was conducted in class XI B MIPA in the 2025/2026 Academic Year. The method used is Research and Development (R&D) with the ADDIE development model consisting of the stages of analysis, design, development, implementation, and evaluation. The research sample consisted of 33 students of class XI B who participated in learning using the developed e-module. The validation results showed that the e-module obtained an average score of 89% from material experts, and 87% from media experts with a very valid category. Student responses to the e-module reached an average of 89.43% with a very practical category. The effectiveness of the e-module is shown through an increase in learning outcomes with an average pre-test score of 48.30 and a post-test of 87.58 and an N-Gain of 0.73 which is included in the high category. The conclusion of this study indicates that the e-module based on the STEM and ethnoscience approaches through Google Sites meets the criteria of validity, practicality, and effectiveness in improving student learning outcomes in acid-base topics.

Analisis Task Performance Ditinjau dari nAch dan Test of Anxiety dalam Pendidikan Vokasional

2026-05-08T00:07:52+07:00

Need for Achievement (nAch) plays an important role in encouraging student engagement, persistence, and performance in vocational education. However, empirical studies linking nAch, task performance, and test anxiety are still limited. This study aims to analyze the relationship between nAch, test anxiety, and task performance in the context of vocational education. The study used a quantitative correlational-predictive design with linear regression analysis to examine the relationship between nAch and test anxiety on task performance. The results showed that the data were normally distributed and the regression model constructed was statistically significant (p < 0.001) with a coefficient of determination (R²) of 0.891. These findings indicate that 89.1% of the variation in task performance can be explained by nAch and test anxiety, while the remainder is influenced by other factors outside the model. Partially, nAch has a positive and significant effect on task performance, while test anxiety has a negative and significant effect. The results indicate that achievement motivation is a factor that plays an important role in improving task performance, while anxiety can be a barrier to achieving optimal performance. These findings have implications for the development of educational and training strategies that focus on enhancing achievement motivation and managing anxiety to support better student performance.

Penerapan Model Pembelajaran Think Pair Share Berbantuan Media Quizizz untuk Meningkatkan Kemampuan Pemecahan Masalah Siswa SD

2026-05-10T16:14:52+07:00

Mathematical problem-solving ability is an important skill that students need to have to solve various problems logically and systematically. However, the mathematical problem-solving ability of fourth-grade students on plane geometry material is still relatively low. The purpose of this study is to improve students' mathematical problem-solving ability through the application of the Think Pair Share (TPS) learning model assisted by Quizizz. This study uses Classroom Action Research (CAR) which is implemented in two cycles through the stages of planning, implementation, observation, and reflection. The subjects of this study were 22 fourth-grade students at one of the Public Elementary Schools in Central Aceh Regency. Data collection techniques were carried out through tests to measure students' abilities on plane geometry material, as well as observation and interviews to obtain information about the learning process. The results of the study showed that the application of the Think Pair Share (TPS) model assisted by Quizizz was able to improve students' abilities in solving mathematical problems. Classical learning completeness increased from 31.81% in cycle I to 86.36% in cycle II. Teacher activity showed a percentage of 78.32% in cycle I and increased to 88.32% in cycle II. Meanwhile, student activity showed a percentage of 76.10% in cycle I and increased to 86.10% in cycle II. The research findings indicate that the implementation of the TPS model assisted by Quizizz is effective in improving the mathematical problem-solving skills of fourth-grade elementary school students on plane geometry.

Pengaruh Gamifikasi dalam Pembelajaran Menulis Cerpen Siswa Kelas XI 2 SMA Negeri 8 Makassar

2026-05-12T00:52:18+07:00

This research is motivated by the low short story writing skills of students in Indonesian language learning which is still conventional and less involving student activity. This study aims to analyze the effect of the gamification method on the short story writing skills of class XI 2 students at SMA Negeri 8 Makassar. The type of research used is a quantitative research type using a pre-experimental method. The data collection technique in this study is a short story writing assignment which is divided into pre-test and post-test. Data analysis used in this study is descriptive statistical analysis and inferential statistical analysis. The results of the study revealed that the learning outcomes of short story writing texts of class XI 2 students of SMA Negeri 8 Makassar before the application of the gamification method were in the sufficient category with an average value of 53.08. The learning outcomes of short story writing texts of class XI 2 students of SMA Negeri 8 Makassar after the application of the gamification method were in the good category with an average value of 81.71. Based on the results of the paired t-test, it can be concluded that the implementation of the gamification method significantly improved the short story writing skills of grade 11 students at SMA Negeri 8 Makassar.

Analisis Proses Pemecahan Masalah Mahasiswa Calon Guru Matematika pada Soal Cerita melalui Perspektif Model Polya

2026-07-05T23:08:53+07:00

Solving word problems serves as an indicator of prospective mathematics teachers' critical thinking skills, specifically their ability to link contextual representations with mathematical models. However, in reality, many prospective mathematics teachers are not yet accustomed to using problem-solving models, such as Polya’s model. This study aims to analyze the problem-solving processes of prospective mathematics teachers when solving word problems, viewed through the lens of Polya’s model. Polya’s model comprises four stages: understanding the problem, devising a plan, carrying out the plan, and looking back (reviewing the results). This is a qualitative descriptive study employing a case study design. The subjects consisted of 60 students from the Mathematics Education Study Program at Mandalika University of Education, drawn from various semesters. Purposive sampling was used to select participants based on high, medium, and low ability categories. Data collection involved source triangulation using tests, questionnaires, interviews, and documentation in the form of teaching practice videos. Subsequently, the data were analyzed using a qualitative descriptive approach. The results indicate that while students could identify the given information and the questions asked, they tended not to write them down. Students demonstrated competence in the "carrying out the plan" stage but showed weaknesses in the "devising a plan" and "looking back" stages. These findings highlight the need to strengthen conceptual understanding, systematic thinking skills, metacognitive abilities, and the capacity to solve non-routine problems, as well as to provide training in reflective thinking, so that prospective teachers can apply Polya’s model more comprehensively in mathematical problem-solving. The study's findings are expected to serve as a basis for reflection for educators and prospective educators regarding the importance of incorporating problem-solving model procedures into the learning process.

Pengaruh Penerapan LKPD Berbasis PjBL terhadap Keterampilan Berpikir Kritis dan Hasil Belajar Kognitif Siswa

2026-04-02T17:46:04+07:00

This pre-experimental study, utilizing a one-group pretest-posttest design, aimed to examine the validity and effectiveness of a Project-Based Learning (PjBL)-based Student Worksheet on the topic of environmental pollution regarding students' critical thinking skills and cognitive learning outcomes. The study population comprised all students at SMAN 8 Mataram, with class X MIPA 1 selected as the sample using a non-random sampling technique. Data were collected using instruments consisting of a critical thinking essay test (6 items), a cognitive multiple-choice test (12 items), and expert validation sheets. Data analysis employed Aiken’s V index for validity and the N-Gain formula to measure competency improvement. The results indicated that all materials fell into the "highly valid" category, with average Aiken's V indices of 0.89 (teaching module), 0.76 (LKPD), 0.87 (critical thinking test), and 0.89 (cognitive test). The implementation of the PjBL-based LKPD proved sufficiently effective in enhancing student abilities, as evidenced by N-Gain scores of 0.57 for critical thinking skills (57.55% effectiveness) and 0.56 for cognitive learning outcomes (56.20% effectiveness). Integrating PjBL syntax into this LKPD effectively facilitated independent thinking and students' mastery of essential concepts.

Pengaruh Model Discovery Learning terhadap Minat dan Hasil Belajar Siswa pada Materi Laju Reaksi

2026-05-12T21:30:20+07:00

This study aims to determine the effect of the discovery learning model on students' interest and learning outcomes regarding the topic of reaction rates. This research employed a quasi-experimental design with a two-group pretest-posttest approach. The study population consisted of all Grade XI students at SMA Swasta GBKP Kabanjahe; two classes an experimental class and a control class were selected as the sample using cluster random sampling. Research instruments included a learning outcome test and a learning interest questionnaire. Data analysis techniques comprised tests for normality, homogeneity, N-Gain, t-tests, and correlation analysis. The results showed N-Gain scores of 0.60 for the control class and 0.661 for the experimental class, indicating a significant effect of the discovery learning model on students' interest and learning outcomes. Thus, the discovery learning model proved effective in enhancing students' interest and learning outcomes regarding the topic of reaction rates.

Pengaruh Penerapan Konseling Kelompok dengan Cognitive Restructuring untuk Meningkatkan Pengendalian Emosi Negatif

2026-05-13T19:40:02+07:00

This study aims to determine the effect of implementing cognitive restructuring techniques through Cognitive Behavioral Therapy (CBT)-based group counseling services on improving students' negative emotional control. The study used a pre-experimental method with a one-group pretest-posttest design, conducted at SMP Negeri 7 Samarinda. The study sample, consisting of six students, was determined through purposive sampling, taking into account the number of group counseling members stipulated in the guidance and counseling operational guidelines. The research instrument was a negative emotional control scale, while data analysis used a normality test and a paired sample t-test. The results showed that the average negative emotional control score before treatment increased from 101.2 (low category) to 158.5 (very high category) after treatment. The paired sample t-test showed a significance value of 0.000 <0.05, indicating that the implementation of cognitive restructuring techniques in CBT-based group counseling services has a positive effect on improving students' negative emotional control. Therefore, cognitive restructuring techniques can be implemented as a strategy in guidance and counseling services in schools to help improve students' negative emotional control.

Analisis Pemerataan Distribusi Panas pada Permukaan Material Plastik pada Alat Mesin Press Sealing

2026-05-13T20:52:48+07:00

Uniform heat distribution across plastic materials is a critical aspect of manufacturing processes such as molding and thermoforming. Irregularities in temperature distribution can lead to product defects, including deformation, uneven shrinkage, and compromised surface quality. This study aims to analyze the factors influencing heat distribution uniformity on the surface of plastic materials using a sealing press machine. An experimental method was employed to analyze heat distribution on Polypropylene (PP) surfaces using the sealing press. The study relied entirely on primary data regarding heat application specifically temperatures of 110°C, 140°C, and 180°C; a pressure of 3 bar; and a press distance of 0.08 m. The results indicate that heat distribution within the polymer is significantly influenced by the material's thermal conductivity, pressure, duration, press distance, and the conductive heating mode. Variations in the polymer's thermophysical properties result in distinct temperature distribution responses depending on the heating method used.

Perancangan dan Analisa Mesin Sealing Plastik Berbasis Pneumatik

2026-05-13T21:11:00+07:00

The growth of small and medium-scale food industries necessitates packaging processes that are rapid, neat, and hygienic to enhance product quality and business competitiveness. Common issues associated with manual packaging include imperfect seals, lengthy processing times, and inefficient labor utilization. This study aims to design and analyze a pneumatic plastic sealing machine as a solution to improve the efficiency and quality of food packaging processes. The research methodology involved device design, pneumatic component selection, machine frame fabrication, system assembly, and performance testing. The pneumatic system utilizes an operating pressure of 3 bar to drive the plastic sealing process. Testing was conducted to analyze production capacity, processing time, and seal quality under various operating conditions. The results indicate that the pneumatic plastic sealing machine achieves a production capacity of up to 60 seals per minute. Optimal seal quality was obtained at a heater temperature of 170°C with a sealing time of 1 second, producing a tight, strong, and uniform seal with a 95% success rate. Compared to manual methods, the pneumatic sealing machine increases packaging process efficiency by 50%, delivers superior and consistent seal quality, and enhances overall productivity and process efficiency. This machine represents an effective and efficient appropriate technology solution for small and medium-scale food industries.

Pengaruh Model Pembelajaran Discovery Learning Berbantuan Virtual Laboratory OLabs terhadap Hasil Belajar Siswa Kelas XI pada Materi Asam Basa

2026-05-13T23:35:05+07:00

This study aims to analyze the differences in learning outcomes, improvement in learning outcomes, and the effectiveness of the discovery learning model assisted by the Virtual Laboratory OLabs on acid-base material. The study used a quasi-experimental method with a pretest-posttest control group design. The study sample consisted of two classes of XI MAN 2 Model Medan, namely XI F1-A and XI F1-G. The experimental class applied the discovery learning model and the control class used the direct learning model. Both classes used the same media, namely the Virtual Laboratory OLabs, so that differences in learning outcomes were reviewed based on the applied learning model. Data were collected using a validated multiple-choice test. The results showed that the average post-test score of the experimental class (87.12) was higher than the control class (82.78). The improvement in learning outcomes in the experimental class was also better with an average N-Gain value of 0.74 (high category), while the control class obtained an N-Gain of 0.61 (medium category). The results of the hypothesis test showed a significance value of 0.001 (p < 0.05), indicating a significant difference in learning outcomes between the two groups. Thus, the discovery learning model assisted by the Virtual Laboratory OLabs is more effective than the direct learning model in improving student learning outcomes in acid-base material.

Pengembangan E-Modul Berbasis Chem Edutainment untuk Meningkatkan Hasil Belajar Siswa pada Materi Ikatan Kimia

2026-03-30T19:52:07+07:00

This study aims to develop a chem-edutainment-based e-module to improve student learning outcomes at Parulian 2 Private High School, Medan. The research was conducted during the even semester of the 2025/2026 academic year, involving Grade XI students as research subjects. The study employed the Research and Development (R&D) method using the 4D development model, which consists of the define, design, develop, and disseminate stages. The sample comprised 26 students who participated in instruction using the developed e-module. The results indicate that the developed e-module met feasibility criteria, with average ratings of 85.9% from subject matter experts and 88% from media experts, placing it in the "highly valid" category. Furthermore, there was a significant improvement in student learning outcomes; the average pre-test score was 24.03 and the post-test score was 78.65, with an N-Gain of 0.72, indicating a high level of improvement. Student response also showed a satisfaction rate of 89.65%. The study concludes that the chem-edutainment-based e-module can enhance student learning outcomes regarding chemical bonding material.

Efektivitas Penerapan Scratch Programming Berkonten Magic Words untuk Meningkatkan Pemahaman Etika Digital Anak Usia Dini 5-6 Tahun

2026-05-19T03:45:01+07:00

The development of digital technology has increased the intensity of early childhood interactions with digital media. This condition requires the introduction of digital ethics from an early age to prevent the emergence of negative behaviors, such as the use of impolite language, exposure to inappropriate content, and cyberbullying. This study aims to determine the effectiveness of implementing scratch programming with magic words content in improving the understanding of digital ethics in children aged 5-6 years. This study used a quantitative method with a quasi-experimental approach and a one-group pretest-posttest design. The research instrument has passed validity and reliability tests with a Cronbach's Alpha value of 0.70. Data analysis was carried out using the Shapiro-Wilk normality test, the Wilcoxon test, and the N-Gain test. The results of the normality test showed that the pretest and posttest data were not normally distributed, so the analysis was continued using the Wilcoxon test. The Wilcoxon test results showed a significance value <0.001 which indicated a significant difference between the pretest and posttest scores. The results of the N-Gain test obtained an average value of 0.8770 which is included in the high category. Thus, the implementation of scratch programming with magic words content is effective in improving children aged 5-6 years old's understanding of digital ethics.

Eksplorasi Aktivitas Fundamental Matematika pada Aktivitas Etnomatematika dalam Merajut

2026-05-20T23:17:13+07:00

Ethnomathematics is a study that connects mathematical concepts with community culture, one of which is knitting activities. This study aims to explore the fundamental mathematical activities in knitting activities based on Alan Bishop's theory, namely counting, measuring, determining location, designing, playing, and explaining. This qualitative research uses an ethnographic approach. The data collection techniques are through observation, in-depth interviews, and documentation of knitters in the Jember Knitting Community (KRJ). Meanwhile, data analysis includes data reduction by filtering data that corresponds to the fundamental mathematical activities, data presentation, and drawing conclusions. The results of the study indicate that knitting activities contain six fundamental mathematical activities, namely measuring activities that appear in determining product sizes, designing activities that appear in compiling knitted product designs, determining location activities that appear in placing motifs on knitting, counting activities that appear in the process of counting stitches, playing activities that appear through exploration of motif and color variations, while explaining activities that appear in explaining knitting techniques and steps. In addition, knitting activities also contain various mathematical concepts, such as number patterns, arithmetic operations, measurement, geometry, symmetry, geometric transformations, creativity and mathematical reasoning, and mathematical logic. This research shows that knitting activities can be used as a resource for contextual, culture-based mathematics learning.

Efektivitas Blended Learning terhadap Hasil Belajar Sains: Systematic Literature Review

2026-07-26T00:16:38+07:00

Blended learning is a learning model that integrates face-to-face learning with online learning to create a more flexible, interactive, and student-centered learning experience. This study aims to analyze the effectiveness of blended learning on science learning outcomes through the Systematic Literature Review (SLR) approach. The study was carried out by referring to the PRISMA guidelines through the stages of identification, screening, feasibility assessment, and inclusion. Literature searches were conducted on Scopus, ScienceDirect, ERIC, Google Scholar, and SpringerLink databases with a publication range of 2019–2025. Based on the selection process, as many as 19 articles met the inclusion criteria and were analyzed using narrative synthesis. The results showed that 84.2% of studies reported that blended learning significantly improved science learning outcomes compared to conventional learning, while 15.8% of studies found no significant difference despite showing an increase in student motivation, engagement, and learning satisfaction. In addition to improving cognitive learning outcomes, blended learning also contributes to improving critical thinking skills, problem solving, science literacy, science process skills, and learning independence. The effectiveness of the implementation of blended learning is influenced by the quality of learning design, teacher competence, student readiness, and technological infrastructure support. These findings show that blended learning is an effective learning strategy to improve the quality of science learning at various levels of education, with the record that its implementation is supported by systematic planning and optimal use of technology.

Praktik Storytelling Digital dalam Konten TikTok Transpakuan sebagai Media Komunikasi Publik

2026-05-20T23:33:16+07:00

This research is motivated by the increasing use of social media as a means of public communication that demands the delivery of information in an interesting, informative manner, and able to build audience engagement. This study aims to analyze the construction of storytelling elements, the function of storytelling, and the role of digital storytelling practices in increasing the effectiveness of public communication in Transpakuan TikTok content. The study uses a descriptive qualitative approach with data collection techniques through in-depth interviews and observation of Transpakuan TikTok content. The research informants consisted of four people who have roles in managing Transpakuan's communication and social media. Data analysis was carried out using the Miles and Huberman model which includes data reduction, data presentation, and drawing conclusions. The results show that digital storytelling practices in Transpakuan TikTok content are built through structured content planning by utilizing elements of hooks, storylines, conflicts, solutions, and Call To Action (CTA). The function of storytelling is not only as a means of conveying information about public transportation services, but also as an educational and persuasive medium that is able to connect institutional messages with the audience's daily experiences. The research findings show that content that displays user experiences, service operational activities, and passenger problem solving tends to generate higher audience engagement than conventional informative content. Digital storytelling practices have been proven to increase the effectiveness of public communication by enhancing engagement and emotional connection with audiences, as well as strengthening Transpakuan's image as a communicative, responsive, and adaptable public transportation service to digital media developments. Therefore, digital storytelling plays a crucial role in strengthening communication between institutions and the public.

Strategi Pengelolaan Konten TikTok dalam Layanan Informasi Publik oleh Humas Perumda Transportasi Pakuan Bogor

2026-05-20T23:48:03+07:00

This study aims to analyze the process of managing TikTok content as a public information service by the Public Relations of Perumda Transportasi Pakuan Bogor. The study used a descriptive qualitative approach, collecting data through participatory observation, in-depth interviews, documentation, and direct involvement of researchers in the Public Relations Division of Perumda Transportasi Pakuan Bogor. The research informants consisted of the deputy head and members of the Public Relations Division directly involved in TikTok content management. Data were analyzed through data reduction, data presentation, and conclusion drawing. The results indicate that content management is carried out in four stages: planning, production, distribution, and evaluation. Content planning is based on social media trends, audience information needs, and TikTok insight data. Production involves filming, editing, and internal review before publication. Content distribution is carried out routinely, taking into account upload times and active audience interaction. Evaluation is conducted using TikTok insight data to measure audience engagement and content effectiveness. This study also identified obstacles such as rapidly changing TikTok trends, technical production constraints, and challenges in creating engaging yet informative content. Structured content management can support TikTok as a public information service that is communicative, effective, and easily understood by the public.

Analisis Kesulitan Menulis Teks Eksplanasi Siswa Kelas V UPTD SD Negeri 3 Jangka

2026-05-22T00:04:03+07:00

This research is motivated by the low ability of elementary school students in writing explanatory texts. The purpose of this study is to identify the types of difficulties in writing explanatory texts, analyze the factors that cause them, and describe the teachers' efforts in overcoming these difficulties. The study used a qualitative approach with a case study type. The subjects were 29 fifth-grade students of UPTD SD Negeri 3 Jangka. Data were collected through writing tests, analysis of student writing documents, and learning observations. Data were analyzed descriptively qualitatively based on aspects of content, organization, and writing mechanics. The results showed that students experienced difficulties in the aspects of content, organization, and mechanics. Difficulties in the content aspect were indicated by the still low ability to develop main ideas into detailed descriptions. In the organizational aspect, students were not yet able to compose cohesive and coherent paragraphs. Meanwhile, in the mechanical aspect, errors in the use of capital letters and punctuation were still found. Factors causing difficulties consisted of internal factors, namely low interest in writing, limited vocabulary, and weak visual memory, as well as external factors in the form of the use of conventional learning methods, lack of literacy support at home, and excessive use of gadgets. Efforts made by teachers include utilizing visual media such as Smart TVs, implementing multisensory strategies, and providing structured writing exercises.

Pengaruh Penerapan Model Pembelajaran POGIL Berbantuan Media Articulate Storyline terhadap Motivasi dan Hasil Belajar Siswa pada Materi Ikatan Kimia

2026-05-22T16:58:40+07:00

The low motivation and learning outcomes of students in chemical bonding material encourages the need for the implementation of innovative learning models assisted by technology. This study aims to determine the effect of the application of the POGIL learning model assisted by Articulate Storyline media on student motivation and learning outcomes in chemical bonding material and to determine the correlation between the two. The research method used is a quasi-experimental design with a pretest-posttest control group design. The research sample consisted of 72 students consisting of two classes, namely the experimental class (n = 36) taught with the POGIL model assisted by Articulate Storyline and the control class (n = 36) taught with the direct instruction model assisted by the same media. The research instruments were multiple-choice tests for learning outcomes and Likert scale questionnaires for learning motivation. Data were analyzed using the Shapiro-Wilk normality test, Levene's homogeneity test, independent sample t-test, and Pearson correlation test. The results showed a significant effect of the POGIL model on student learning motivation (average 81.14 > 67.94) with a significance value of p < 0.05, and on student learning outcomes (average 86.56 > 75.17) with p < 0.05. Furthermore, the Pearson correlation test showed a very strong and significant correlation between motivation and student learning outcomes (r = 0.802; p < 0.05). These findings indicate that the POGIL model, supported by an Articulate Storyline, is a suitable alternative for chemistry learning to improve student motivation and learning outcomes.

Plankton Community Structure as a Bioindicator of Lake Toba Water Conditions in Balige District Toba Regency

2026-05-22T18:37:17+07:00

Plankton sampling was conducted at three observation stations in the study area, with samples collected from surface waters using standard plankton sampling techniques. Phytoplankton and zooplankton were identified microscopically, and community structure was evaluated using abundance, diversity (Shannon-Wiener), evenness, and dominance indices. A total of six phytoplankton classes and four zooplankton classes were identified. The phytoplankton community was represented mainly by members of Bacillariophyceae, Chlorophyceae, Cyanophyceae, Dinophyceae, Coscinodiscophyceae, and Zygnematophyceae, while the zooplankton community was dominated by taxa belonging to Crustacea, Rotatoria, Hexanauplia, and Tubulinea. Phytoplankton species richness was higher than zooplankton richness, indicating a relatively stable aquatic ecosystem with a well-developed primary producer community. Phytoplankton abundance ranged from 709,652 to 2,414,621 cells m⁻³ across stations, whereas zooplankton abundance ranged from 51,119 to 300,700 individuals m⁻³. The Shannon-Wiener diversity index (H′) showed moderate diversity (1 ≤ H′ ≤ 3), suggesting sufficient productivity, fairly balanced ecosystem conditions, and moderate ecological pressure. Evenness values indicated a relatively uniform distribution of plankton among sampling stations, while dominance index values showed that no single taxon dominated the community. The plankton community structure suggests that the study area remains in a relatively stable ecological condition and supports balanced aquatic ecosystem functioning.

Hasil Belajar Siswa pada Pembelajaran PBL dan Inkuiri Terbimbing Berbantuan PhET pada Materi Laju Reaksi

2026-05-22T18:56:41+07:00

Chemistry learning on reaction rates requires a learning model that can improve conceptual understanding and student learning outcomes through active involvement in the learning process. This study aims to determine the differences in student learning outcomes between Problem-Based Learning (PBL) and guided inquiry models assisted by PhET simulations on reaction rates. This study was a quasi-experimental study with a two-group pretest-posttest design. The study population was all eleventh-grade students of SMA Negeri 8 Medan, with a sample of 64 students selected using a purposive sampling technique. The research instrument was a learning outcome test. Data were analyzed using an independent sample t-test assisted by SPSS. The results showed a significant difference in student learning outcomes between the PBL and guided inquiry classes (Sig. 0.000 < 0.05). The average student learning outcome in the PBL class was 80.47, higher than the guided inquiry class at 70.16. Thus, the Problem Based Learning (PBL) model assisted by PhET simulations is more effective in improving student learning outcomes on reaction rates than the guided inquiry model.

Pengaruh Model Problem Based Learning Berbantuan Teka Teki Silang terhadap Hasil Belajar Siswa pada Materi Larutan Elektrolit dan Non Elektrolit

2026-05-24T16:37:24+07:00

The low learning outcomes of students on electrolyte and non-electrolyte solutions require the application of active and innovative learning models. This study aims to determine the effect of the Problem Based Learning (PBL) model assisted by crossword puzzles on student learning outcomes on electrolyte and non-electrolyte solutions for grade XI of senior high school. The study was conducted at SMA Negeri 6 Mandau using a quasi-experimental method and a pretest-posttest control group design. The sample consisted of 70 students divided into two classes, namely class XI IPA 3 as the experimental class and class XI IPA 5 as the control class. The research instrument was a multiple-choice learning outcome test that had been tested for validity, reliability, difficulty level, and discrimination power of the questions. Data were analyzed using the N-Gain test and independent sample t-test. The results showed that the average post-test score of the experimental class was 79.81, higher than the control class at 67.61. The results of the N-Gain test showed an increase in learning outcomes of the experimental class by 0.72 (high category), while the control class was 0.57 (medium category). Based on the hypothesis test using an independent sample t-test, a significance value (sig. < 0.05) was obtained. Therefore, it can be concluded that the crossword puzzle-assisted PBL model has a positive and significant effect on student learning outcomes.

Peningkatan Problem Solving Skill melalui LKM Berbasis Scaffolding pada Murid Kelas VII SMP Negeri 7 Jember

2026-05-24T16:44:42+07:00

This study aims to improve the problem solving skills of 7F class students at SMP Negeri 7 Jember in science learning through the implementation of scaffolding-based Student Activity Units (LKM). The problem underlying this study is the low problem solving skills of students in the learning process. This study uses the Classroom Action Research (CAR) method with the Kemmis and MCTaggart models which are carried out in two cycles, each cycle consisting of planning, implementation, observation, and reflection stages. The study was conducted in the even semester of the 2025/2026 academic year with research subjects consisting of 32 students in 7F class. Research data were obtained through problem solving ability assessment sheets in each cycle. The results of the study showed an increase in problem solving skills through the implementation of scaffolding-based Student Activity Units (LKM). In the first cycle, only 17 of 32 students (53.13%) achieved the KKM with an average of 67.2. After improvements were made in the second cycle, the number of students who completed the learning increased to 29 students (90.63%) with an average of 87.3. Thus, the implementation of scaffolding-based student worksheets (LKM) has been proven to improve the problem-solving skills of 7th-grade students at SMP Negeri 7 Jember.

Pengembangan LKPD Berbasis Coding Robotik dengan Pendekatan STEM untuk Meningkatkan Keterampilan Berpikir Kritis Siswa SMP

2026-05-24T17:52:13+07:00

This study was conducted to develop a student worksheet (LKPD) based on robotic coding that integrates STEM to enhance the critical thinking skills of junior high school students in science lessons. Students' critical thinking skills were low because learning methods were still dominated by teacher-led lectures, alongside a lack of interactive teaching materials that foster active student engagement. Furthermore, students had not previously been introduced to STEM-focused learning or robotic coding, resulting in limited abilities regarding analysis, problem-solving, and understanding concepts of motion. This study employed the Research and Development (R&D) method, specifically the ADDIE development model. The research took place at SMP Negeri 2 Jember, located at Jalan PB Sudirman No. 26, Kp. Using, Jemberlor, Patrang District, Jember Regency. The research subjects were 36 students from class VII E at SMP Negeri 2 Jember during the 2025/2026 academic year. Data collection instruments included expert validation sheets, lesson implementation observation sheets, pre-tests and post-tests, and student response questionnaires. Research findings indicate that the robotic coding-based student worksheet utilizing a STEM approach achieved an average validity score of 88.6%, classifying it as "highly valid." Regarding practicality, the worksheet obtained an overall score of 85.56%, indicating it was "highly practical." Effectiveness results, based on N-Gain analysis, yielded an overall score of 0.45 (medium category), while student response questionnaires fell into the "very good" category with a score of 84.06%. Based on these results, the robotic coding-based student worksheet with a STEM approach is deemed valid, practical, and effective for enhancing junior high school students' critical thinking skills regarding the topic of motion.

Penerapan Model Realistic Mathematics Education (RME) untuk Meningkatkan Kemampuan Pemecahan Masalah Siswa pada Materi Operasi Hitung Pecahan di Kelas V

2026-05-25T00:33:27+07:00

Elementary school students' mathematical problem-solving skills remain low, particularly regarding fraction operations. Students struggle to grasp fraction concepts and determine the steps needed to solve problems. This study aims to determine the improvement in students' problem-solving skills through the Realistic Mathematics Education (RME) model applied to the topic of fraction operations. The study employed a mixed-methods approach (combining quantitative and qualitative data) within a Classroom Action Research (CAR) framework, conducted at UPTD SD Negeri 9 Gandapura with 14 fifth-grade students. Data were collected via tests, observations, and interviews, and analyzed descriptively. The research was carried out in two action cycles, each comprising planning, implementation, observation, and reflection phases. The results indicate an improvement in problem-solving skills: the mastery percentage rose from 28.57% in Cycle I to 85.71% in Cycle II. Teacher activity increased from 79.99% in Cycle I to 90.76% in Cycle II, while student activity rose from 77.69% to 89.23%. Interview results show that students responded positively to the instruction, finding the material easier to understand through real-world contexts and the lessons more engaging. These findings indicate that the RME model is effective in enhancing students' mathematical problem-solving skills regarding fraction operations.

Analisis Praktik Pembelajaran Berdiferensiasi pada Mata Pelajaran PJOK di SD Negeri Kecamatan Gunungpati Kota Semarang

2026-05-26T00:46:58+07:00

This study aims to analyze the practice of differentiated learning in Physical Education, Sports, and Health (PJOK) subjects in Public Elementary Schools in Gunungpati District, Semarang City. The study used a qualitative method with a descriptive approach. The research informants consisted of PJOK teachers and students at 18 Public Elementary Schools selected using a purposive sampling technique. Data were collected through observation, semi-structured interviews, and documentation, then analyzed using the Miles, Huberman, and Saldaña model which includes data reduction, data presentation, and conclusion drawing. The results showed that PJOK teachers' understanding of differentiated learning was still at various levels, namely good, sufficient, and limited categories. Teachers with a good understanding had implemented differentiation of content, process, and product through adjusting the level of material difficulty, using varied learning methods, and assessment based on student development. However, most implementations were still dominated by process differentiation, while product differentiation and the use of diagnostic assessments had not been carried out optimally. Identification of student learning needs was generally carried out through direct observation during learning and had not been supported by systematic assessment. The main obstacles identified included limited learning time, a relatively large student population, and teachers' unequal understanding of the concept of differentiated learning. The study's conclusions indicate that differentiated learning in Physical Education (PJOK) in public elementary schools in Gunungpati District has begun to be implemented and is aimed at meeting the diverse learning needs of students, but its implementation has not been systematic and consistent. Therefore, strengthening teacher competencies, utilizing diagnostic assessments, and providing school support are needed to improve the quality of differentiated learning implementation in PJOK.

Implementasi Model Pembelajaran PjBL Berbantuan Media Wordwall terhadap Hasil Belajar pada Materi Laju Reaksi

2026-05-27T04:59:15+07:00

Low student chemistry learning outcomes, particularly in the abstract topic of reaction rates, coupled with teacher-dominated learning, are among the problems that need to be addressed through the application of innovative learning models and media. This study aims to determine the improvement in chemistry learning outcomes of eleventh-grade high school students on reaction rates after the implementation of the Project Based Learning (PjBL) model assisted by Wordwall. This study used a quasi-experimental method with a nonequivalent control group design. The sample consisted of two eleventh-grade high school classes determined using a purposive sampling technique: the experimental class and the control class. The research instrument used was a validated multiple-choice learning outcome test. The results showed a significant increase in learning outcomes (N-Gain 0.7638) in the high category in the experimental class, with a statistically significant difference (p < 0.05) compared to the control class. The application of the PjBL model assisted by Wordwall has the potential to increase student interest and learning outcomes in reaction rates compared to conventional learning.

Pengaruh Model Pembelajaran TGT (Teams Games Tournament) dengan Pendekatan Deep Learning pada Pembelajaran Biologi terhadap Hasil Belajar Siswa

2026-05-30T02:51:56+07:00

The low biology learning outcomes of students at SMA Negeri 8 Jambi City are indicated by the large number of students who have not yet achieved the Minimum Competency (MC), the lack of active involvement in learning, and the difficulty in understanding concepts in depth. This condition indicates the need for the implementation of innovative learning models to improve student learning outcomes. This study aims to determine the effect of the Teams Games Tournament (TGT) learning model with a deep learning approach on students' biology learning outcomes. The research method used is a quasi-experimental design with a non-equivalent control group design. The research sample consisted of 70 students, namely 36 students in the experimental class using the TGT model based on deep learning, and 34 students in the control class using the Problem Based Learning (PBL) model based on deep learning. Data collection techniques were carried out through pre-tests and post-tests as well as observation sheets for learning implementation. The results showed a significant difference between the two classes with a significance value of 0.015 <0.05. The average post-test score for the experimental class (70.22) was higher than that for the control class (61.44), and the calculated effect size was 0.57, which is considered moderate. Furthermore, the N-Gain Score analysis also showed a higher increase in learning outcomes in the experimental class (0.452) than in the control class (0.376). Thus, the deep learning-based TGT learning model significantly improved students' biology learning outcomes.

Pengaruh LKPD Berbasis Inkuiri Terbimbing terhadap Motivasi dan Hasil Belajar Asam Basa

2026-04-19T00:13:06+07:00

This study aims to determine the effect of implementing guided inquiry-based Student Worksheets (LKPD) on learning motivation and learning outcomes regarding the topic of acids and bases. This study employs a quantitative approach using a quasi-experimental method involving Grade XI students at SMA Negeri 2 Sidikalang, Dairi Regency, North Sumatra. The results indicate that the implementation of guided inquiry-based LKPD significantly increased students' learning motivation and positively influenced their learning outcomes. Furthermore, a very strong positive correlation was found between learning motivation and learning outcomes (r = 0.96; contribution of 92.1%), indicating that higher learning motivation leads to higher learning outcomes. These findings confirm that guided inquiry-based LKPD can serve as an effective alternative teaching material to enhance the quality of chemistry instruction, particularly regarding the topic of acids and bases.

Pengembangan Bahan Ajar Laju Reaksi Berbasis STEM-PBL pada Mata Kuliah Dasar Ilmu Kimia

2026-05-27T01:53:09+07:00

This study aims to develop teaching materials on reaction rates based on the STEM-Problem Based Learning (STEM-PBL) approach and to assess their validity and practicality, ensuring they are suitable for use in a basic chemistry course. The study employed the Research and Development (R&D) method using the Plomp model, which encompasses the stages of preliminary investigation, design, product development, evaluation, and revision. The research involved three expert validators and 30 students from the Chemistry Education Study Program. Data collection instruments included validation sheets and practicality questionnaires. Validation results indicated that the teaching materials fell into the "highly valid" category, with average scores of 90 for content, 90.8 for language, and 88.3 for graphics. Practicality test results showed that the developed materials were "highly practical," achieving scores of 87 for ease of use, 88.5 for presentation appeal, and 90.5 for usefulness. The findings demonstrate that the STEM-PBL-based reaction rate teaching materials meet the criteria for high validity and practicality, making them suitable as learning resources for basic chemistry courses. This study was limited to assessing the product's validity and practicality.