PENDIPA Journal of Science Education

Pengembangan Video Interaktif Berbasis Etnosains Papua untuk Pengajaran IPA Terpadu

2024-12-13T09:28:34+00:00

This study discussed the development of Integrated Science teaching materials in the form of an Interactive Video Based on Papua's Local Ethnoscience. The local wisdom of Papua explained in the video includes sago trees, red fruit, matoa trees, and areca nut trees. This research used research and development (R&D) methods with the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The subjects of this study include one subject matter expert teacher, one media expert lecturer, and seventh-grade students from SMP Negeri 26 in Sorong Regency. The instruments used to assess the feasibility of the interactive video based on Papua's local ethnoscience include a feasibility sheet by subject matter and media experts, a questionnaire to gauge students' responses to the use of the interactive video, and pretest and posttest trials to evaluate the effectiveness of the interactive video based on Papua's local ethnoscience. The data analysis results showed a score of 97.92% from the subject matter expert and 86.98% from the media expert, both of which fall into the very feasible category. The effectiveness of the Interactive Video Based on Papua's Local Ethnoscience was measured by student learning outcomes, which were categorized as high, with an n-gain score of ≥ 0.7. The students' responses indicated that 15 students 87% gave positive feedback on the use of the Interactive Video Based on Papua's Local Ethnoscience.

Pembuatan Produk Bioplastik sebagai Proyek dalam Pembelajaran STEM-PjBL untuk Meningkatkan Kemampuan Berpikir Kritis Siswa

2025-06-10T03:45:39+00:00

This research project aimed to obtain data on learning outcomes using the Project-Based Learning (PjBL) method related to STEM activities in honing students' critical thinking skills in bioplastic manufacturing projects. This research used quantitative method with one group pretest-posttest design. The research targets were VII A students of SMP Negeri 1 Nalumsari as many as 22 students. The research instruments were pretest and posttest tests with analysis of homogeneity test, normality test, and N-Gain test. The test results showed that all data were normally distributed and homogeneous, so it was feasible to analyze further. The overall N-Gain average was 0.6029 (medium category), indicating an increase in critical thinking by 60.29% after learning. The indicators with the highest improvement were problem identification and analysis, while problem solving and drawing conclusions experienced low improvement. Although there are differences in each indicator, all stages of PjBL from problem determination to experience evaluation are proven to contribute to the development of students' critical thinking. This research shows that STEM-PjBL through bioplastic projects can be an alternative to contextualized science learning and 21st century skill oriented.

Hubungan Kekerabatan Lima Spesies Dari Family Poaceae Berdasarkan Karakter Morfologi

2025-06-09T02:43:40+00:00

Indonesia is known as one of the countries with the highest biodiversity in the world, including in the Poaceae family or grasses that have important ecological and economic values. This study aimed to determine the kinship of five species from the Poaceae family based on morphological characters. The species observed include Cenchrus longispinus, Paspalum plicatum, Imperata cylindrica, Setaria parviflora, and Eleusine indica. The study was conducted quantitatively with a descriptive approach, through direct observation of morphological characters such as roots, stems, leaves, flowers, fruits, and seeds. Data were analyzed using a similarity index and visualized in the form of a dendogram. The results show that the five species have many morphological similarities, especially in root type, stem shape, growth direction, and flower type. The species with the closest kinship are Eleusine indica with Paspalum plicatum, and Cenchrus longispinus with Setaria parviflora. Meanwhile, the most distant relationship was found between Imperata cylindrica with Cenchrus longispinus and Setaria parviflora. PCA analysis was also used to identify the most influential morphological characters in distinguishing species. The results of this study provide an initial overview of the taxonomic relationships in the Poaceae family and the importance of morphological characters in plant systematics studies.

Pemeriksaan TiLV (Tilapia Lake Virus) Pada Ikan Nila (Oreochromis niloticus) Budidaya

2025-05-29T12:35:21+00:00

Nile Tilapia (Oreochromis niloticus) is highly sought after by Indonesian consumers and is one of the leading commodities cultivated in freshwater. However, tilapia farming still frequently encounters challenges that lead to a decline in production, one of which is infection by pathogens such as Tilapia Lake Virus (TiLV). TiLV can infect fish in waters with temperatures above 25°C, with mass mortality peaking at 30°C, reaching a 50% death rate. Proper handling and control measures are essential to manage TiLV outbreaks effectively. TiLV detection in fish can be conducted using the Polymerase Chain Reaction (PCR) method. PCR-based virus detection is a diagnostic technique that identifies the presence of viral genetic material with high specificity and accuracy. This study aimed to detect TiLV infection in farmed Nile tilapia. The procedures included sample collection, necropsy, organ fixation, RNA extraction, PCR amplification, electrophoresis, and gel documentation analysis. Based on the PCR results, Nile tilapia samples tested positive for TiLV infection, as indicated by the presence of a 250 bp DNA band in the gel documentation system, aligning with the TiLV positive marker. Among the three fish showing suspected TiLV symptoms, two (66.6%) were confirmed infected.

Analisis Persepsi Guru Terhadap Efektivitas Pembelajaran Biologi Berbasis Technological Knowledge di SMA Kecamatan Samarinda Ulu

2025-06-02T04:20:50+00:00

The development of technology in the education sector today is not accompanied by wise use by students. One way to increase the productivity of technology use by students is through schools, where teachers act as facilitators. This certainly poses a challenge for teachers to maximize the role of technology in schools despite differences and limitations so that learning becomes effective. Teachers' perceptions of technology are important to analyze in efforts to improve the quality of technology-based learning. This study aims to determine teachers' perceptions of the effectiveness of biology learning based on technological knowledge at Samarinda Ulu District High School and the factors influencing it. The methods used are qualitative and quantitative, with measurement tools in the form of questionnaires and interview sheets. Data were analyzed using descriptive statistical analysis. Based on the questionnaire responses from 7 biology teachers at SMA Kecamatan Samarinda Ulu, the analysis of teachers' perceptions of the effectiveness of technology-based biology learning revealed a score of 71.42%, indicating that the majority of teachers have a very positive perception of the effectiveness of technology-based learning. Factors influencing this include teachers' and students' ability to use technology, the availability of infrastructure, the suitability of technology to the material presented, the diversity of applications used in learning, and discipline and motivation in learning.

The Influence of Product Variations, Service Quality, Delivery Methods on Purchasing Decisions in E-Commerce PT W Pharmacies with Moderating Promotional Variables

2025-05-31T01:18:45+00:00

The rapid growth of e-commerce in the pharmaceutical sector requires companies to understand key factors influencing consumer purchasing decisions. This study analyzes the effects of product variety, service quality, and delivery methods on purchasing decisions on PT W Pharmacy’s e-commerce platform, with promotion as a moderating variable. A quantitative approach using SEM-PLS was applied to data from 301 respondents. The results show that product variety has a positive and significant effect (coefficient = 0.207; t = 3.623; p = 0.000), as does service quality (coefficient = 0.157; t = 2.150; p = 0.032). Delivery methods show the strongest positive and significant effect (coefficient = 0.227; t = 4.223; p = 0.000). Promotion also directly has a positive and significant effect on purchasing decisions (coefficient = 0.362; t = 4.853; p = 0.000). As a moderating variable, promotion significantly strengthens the effect of service quality (coefficient = 0.196; t = 2.135; p = 0.033), does not significantly moderate product variety (coefficient = -0.090; t = 1.373; p = 0.170), and has a significant negative moderating effect on delivery methods (coefficient = -0.120; t = 2.019; p = 0.044). These findings emphasize the strategic role of delivery, service quality, and targeted promotion in enhancing online purchasing decisions

Development of Problem Solving Based E-LKPD to Improve Students' Metacognitive Skills on Acid-Base Material

2025-05-26T05:05:19+00:00

This study aims to develop problem solving-based e-worksheet to improve students' metacognitive skills on acid-base material. The components of metacognitive skills used are planning, monitoring and evaluation skills. The feasibility of problem solving-based e-worksheet is reviewed from its validity, practicality, and effectiveness. This research refers to the 4D design which consists of four main stages, namely defining (Define), Designing (Design), Developing (Develop) and Disseminating (Disseminate), but in this study it is limited to the third stage, namely Development (Develop). Limited trials were conducted on 32 students of class XI M1 at SMA IPIEMS Surabaya. The research results obtained include (1) The mode score for content and construct validity is 4, which is included in the valid category; (2) students' responses are included in the very good category with a percentage of 97.9%; (3) students' activities and learning implementation are included in the very good category with a percentage of 96.11%. (4) the normality test results show a Sig value of > 0.061 and 0.068, which means greater than the error rate (α) of 0.05, so the data is normally distributed; and (5) the Paired sample t-test results show a Sig value of 0.000, which means less than 0.05 so that H₀ is rejected and Ha is accepted. Thus, there is an increase in students' metacognitive skills after using problem-based e-worksheet.

Pengaruh Model Pembelajaran CTL (Contextual Teaching and Learning) terhadap Kemampuan Kolaborasi dan Hasil Belajar Siswa SMA pada Pembelajaran Biologi

2025-05-12T23:56:52+00:00

Grade X students of SMA Negeri 2 Bontang experienced problems of low biology learning outcomes and lack of collaboration skills due to conventional teacher-centered learning. This study aimed to determine the effect of implementing the CTL (Contextual Teaching and Learning) model on students' collaboration skills and learning outcomes. The CTL model emphasizes active student involvement in the learning process, connecting material with real-life contexts, and encouraging collaboration and group discussion. This study used a quantitative approach with a quasi-experimental method and a non-equivalent control group design. Sampling was carried out by purposive sampling, with class X5 as the experimental class implementing the CTL model and class X6 as the control class using conventional methods. Data analysis was carried out using the N-Gain test and the Independent Sample t Test. The results showed that the experimental class had an N-Gain value of 0.72 (high category) while the control class had 0.59 (moderate category). The t test showed a significance value of 0.000 <0.05 for collaboration skills and learning outcomes. These results indicate a significant difference between the experimental class and the control class after the CTL model was implemented. Based on these results, it can be concluded that the application of the CTL model has a positive and significant effect on improving the collaboration skills and learning outcomes of class X students of SMA Negeri 2 Bontang in biology subjects.

Pengaruh Project Based Learning dengan Media Digital Microsite terhadap Keterampilan Berpikir Kritis Siswa pada Klasifikasi Makhluk Hidup

2025-05-12T08:41:22+00:00

This study aimed to determine the effect of the project based learning model with digital microsite media on the critical thinking skills of class VII students at SMP Negeri 1 Samarinda. This study used a quasi-experimental design method with a non-equivalent control group design. The sample consisted of 20 students, with the experimental class using the project based learning model and the control class using the conventional model. The results showed that in the experimental class, the average pre-test and post-test scores increased from 60.35 to 86.95 with an N-Gain of 0.67. While in the control class, the average pre-test and post-test scores increased from 59.7 to 71.65 with an N-Gain of 0.29. The T-test results show that the significance value is 0.000 <0.0005 with t count> t table, so it can be concluded that the project based learning model with digital microsite media has a significant effect on the critical thinking skills of class VII students of SMP Negeri 1 Samarinda on the material of classification of living things.

Penerapan Model Pembelajaran Problem Based Learning untuk Meningkatkan Kemampuan Mengambil Keputusan Peserta Didik pada Materi Ekologi dan Keanekaragaman Hayati

2025-05-03T00:33:30+00:00

Latar belakang penelitian adalah rendahnya kemampuan mengambil keputusan pada peserta didik kelas VIIA SMP Negeri 11 Jember Tahun Ajaran 2024/2025. Tujuan penelitian ini yaitu untuk meningkatkan kemampuan mengambil keputusan peserta didik kelas VIIA pada materi Ekologi dan Keanekaragaman Hayati Indonesia dengan menggunakan model pembelajaran Problem Based Learning (PBL). Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK). Desain penelitian meenggunkan model penelitian Kemmis dan Mc Taggart dengan empat tahap yaitu perencanaan, pelaksanaan, pengamatan dan refleksi. Penelitian ini dilaksanakan sebanyak dua siklus, pad tiap siklus terdiri dari dua pertemuan. Teknik pengumpulan data berupa pretest, posttest, Lembar Kerja Peserta Didik, dan lembar observasi pembelajaram. Teknik analisis data menggunakan Uji N-Gain Score. Hasil penelitian menunjukkan terdapat peningkatan kemampuan mengambil keputusan peserta didik berdasarkan Uji N-Gain Score pada siklus I sebesar 0,31 dengan kategori sedang dan siklus II sebesar 0,70 dengan kategori sedang. Kesimpulan dari penelitian ini yaitu model pembelajaran Problem Based Learning dapat meningkatkan kemampuan mengambil keputusan peserta didik kelas VIIA.

The Effectiveness of Student Worksheet with Problem Based Learning and Ethnoscience to Improve Critical Thinking Skills on Chemical Bonding Material

2025-05-28T07:52:41+00:00

Learning chemistry through the merdeka curriculum prioritize on enhancing 21^st century skills include students' critical thinking skills. Due to a number of critical thinking skill constraints, students find out the difficulties to comprehend theory-based in chemistry materials, such as chemical bonding materials. By problem-based learning that integrates ethnoscience content can make learning more meaningful is a way to train and enhance critical thinking skills. This research conducted in terms to quantify the effectiveness of Problem Based Learning and ethnoscience-based student worksheet on chemical bonding material to enhance the critical thinking skills of XI grade senior high school students. The research method used are descriptive quantitative and qualitative of One Group Pretest-Posttest Design. With 36 students of class XI-8 in SMAN 16 Surabaya as the subject, the worksheet stated effective according to the increasingly of N-gain value with an average of 0.7206 that is in the high category. As much as 26 students include into the high category, 8 fall into the medium category, and 2 fall into the low category. Therefore, the finding suggest that student worksheet with Problem Based Learning and ethnoscience-based student worksheet on chemical bonding materials can significantly improve students’ critical thinking abilities.

Development of Greenhouse Effect Teaching Tool to Develop Science Process Skills in Class VII Middle School Students on the Theme of Global Warming

2025-05-28T07:38:11+00:00

The purpose of this research is to create a greenhouse effect teaching tool in science learning on the theme
of global warming to foster Science Process Skills (PPP) in students. The development model used is a 4-
D development model which consists of four stages: define, design, develop, and disseminate. Product
validation was carried out by science education experts and practitioner experts who showed the level of
product validity with a value of 86.18% included in the "excellent" category. The implementation of the use
of greenhouse effect props was carried out by grade VII students at one of the junior high schools in Serang
City. The data of the student response questionnaire showed that the teaching aids were able to grow PPP
with a score of 80.37% with the "very good" category. The results of this study prove that the use of teaching
aids in science learning on the theme of global warming can help grow students' PPP through practicum
activities.

Hubungan Keterampilan Public Speaking Dengan Kemampuan Berpendapat Peserta Didik Pada Materi Keanekaragaman Hayati Di Kelas X MAN 1 Samarinda Plus Keterampilan Dan Riset

2025-05-14T06:18:26+00:00

This study investigates the relationship between students' public speaking abilities and their capacity to articulate opinions on biodiversity topics in Class X at MAN 1 Samarinda (specializing in skills and research). Employing a quantitative approach with a correlational design, the researcher selected participants using purposive sampling from classes X-A and X-C. Data were analyzed using the Spearman correlation test, which produced a p-value of 0.001 indicating statistical significance (p < 0.05). The findings reveal a strong, positive, and significant relationship between public speaking proficiency and students’ ability to express views on biodiversity.