PENDIPA Journal of Science Education

Analisis Pengendalian Kualitas Produksi dengan Menggunakan Pendekatan Logika Fuzzy Failure Mode and Effect Analysis (FMEA)

2025-06-02T19:53:21+00:00

The rapid growth of the manufacturing industry demands that companies continuously enhance product quality to meet consumer needs and maintain competitiveness in the global market. In this context, quality control becomes a strategic element that not only ensures product consistency but also influences corporate reputation and operational efficiency. This study was conducted at PT Industri Komkar Indonesia, a manufacturing company specializing in rubber components, particularly rubber bust boots. The research aims to identify the factors contributing to product defects and uncover the root causes that may reduce customer satisfaction. The method employed is Fuzzy Failure Mode and Effects Analysis (Fuzzy FMEA), an approach capable of addressing uncertainty in risk assessment through the application of fuzzy logic. Calculations are carried out by evaluating the Fuzzy Risk Priority Number (FRPN) for each potential failure mode. The analysis reveals that machine breakdowns or suboptimal machine conditions are the primary causes of product defects. Therefore, corrective actions are essential, including routine machine maintenance, enhanced operator training, and stricter monitoring of the production process. These measures are expected to reduce product failure rates, improve customer satisfaction, and lower production costs resulting from defective products.

Model Bisnis Klinik POLTRADA berbasis Blue Ocean Strategy (BOS) sebagai Fasilitas Kesehatan Tingkat Pertama (FKTP) Tabanan Bali

2025-06-23T16:46:44+00:00

Poltrada Clinic is one of the First Level Health Facilities in Bali that serves 634 ‘BPJS Kesehatan’ participants. The clinic under the Ministry of Transportation has the opportunity to develop its services and business reach along with the development of the number of industries in Tabanan. Therefore, its performance needs to be evaluated to formulate an optimal business strategy. The analysis method uses SWOT analysis followed by the Quantitative Strategic Planning Matrix and Blue Ocean Strategy approaches to obtain the right strategic priorities and business models. Data collection was carried out by interviewing 8 informants. The results of the data analysis show: The SWOT matrix produces (x, y = 0.84; 1.89) where this point is in quadrant I, which means the clinic is in a favorable situation. Based on the CPM results from 7 key factors, Poltrada Clinic has a score of 3.49 which is in the first position compared to 3 existing clinics. This means that Poltrada Clinic has a stronger competitive advantage in various key factors for the success of the health service industry. The results of the QSPM matrix processing show that the highest value lies in alternative strategy 1, namely "Utilizing qualified facilities, existing human resources, complete health services, fast-accurate services and 24-hour services to attract cooperation with companies and transportation agencies in conducting basic MCU tests (S3, S4, S7, S8, S9, O3)". The strategy canvas shows a high offering value for each competency factor. Based on the blue ocean strategy, the Bali Poltrada Clinic must eliminate the inpatient room facility which is now an observation room to reduce operational costs. Reduce Operational costs due to excess human resources by maximizing the role of each profession. Raise ongoing digitalization, work motivation with performance-based incentives, and improve the clinic’s image through active promotion. Create basic MCU services, telemedicine services and collaborate with BPJS, companies including hotel/resorts, department of Transportation and physiotherapy. Poltrada Clinic is also advised to introduce a new tagline, namely: "Accurate examination, ready in 25 hours" which means accurate examination with the support of telemedicine technology, quality MCU services, and readiness more than just 24 hours for better health.

Development of Learning Video Media Based on Contextual Teaching Learning on the Theme of My Environment is Polluted to Develop Creative Thinking Skills of Junior High School Students

2025-06-18T01:37:42+00:00

This study is based on the constraints found in the field regarding the science learning process in junior high schools. Learning activities oriented towards contextual learning and students' creative thinking skills have not been implemented optimally. Creative thinking skills can be implemented by developing them through video learning media based on Contextual Teaching Learning. This study aims to determine the level of validation of video learning media based on Contextual Teaching Learning on the theme of my polluted environment to develop the creative thinking skills of junior high school students. The method used is Research & Development (with the 4D model), namely the define, design, development and dissemination stages. The development stage shows the results of the validity of video learning media based on contextual teaching learning on the theme of my polluted environment to develop the creative thinking skills of junior high school students that based on validation by material experts, the percentage value is obtained 88,40% In the category "Very valid", expert validation by media experts obtained a percentage value of 81,67% In the category "Very Valid" And practitioner validation obtained a percentage value of 93,33% % in the category "Very valid". The results of the validity level of the learning video media product reached a percentage value of 87,80 % in the category “Very valid”.

The Influence of the PjBL-STEM Learning Model on Students' Learning Independence in the Circulatory System Material

2025-06-21T04:35:59+00:00

Low learning independence is a challenge in science learning. The right learning model, such as PJBL-STEM, can be an alternative for students' understanding of the material in depth. This study was conducted to determine the influence of the PjBL-STEM learning model on students' independence in learning the circulatory system material. The method used is a quasi-experiment with a pretest-posttest control group design, involving two classes, namely, the experimental class and the control class. This research instrument includes a learning independence questionnaire and an observation sheet on learning implementation. The results of the research that have been carried out show that the PjBL-STEM learning model has an influence on student independence in learning. The data was analyzed through IBM SPSS version 26. The results of this hypothesis test show that the PjBL-STEM model significantly increases student independence in learning, obtaining a significance value (2-tailed) of 0.022 < 0.05, thus H0 is rejected and H1 is accepted, which corroborates that the PjBL-STEM model has a significant effect on increasing student learning independence in circulatory system materials.

Validitas LKPD Strategi Konflik Kognitif untuk Mereduksi Miskonsepsi pada Materi Hidroakrbon

2025-06-18T07:44:14+00:00

The development of the cognitive conflict-based Student Worksheet (LKPD) plays a role in reducing students' misconceptions regarding hydrocarbons. In this study, the LKPD was created in print format to facilitate the completion of exercises. This LKPD contains information presentations, true statements, and ambiguous statements to create cognitive conflicts for students, as well as reflection questions for conceptual reconstruction. The aim of this research is to determine the validity of the cognitive conflict strategy LKPD. This study employs a Research and Development (R&D) approach based on the 4D development model, which includes Definition, Design, Development, and Dissemination. However, it only reaches the development stage. The research utilized a validation sheet instrument for the LKPD. The validation results indicate that the developed LKPD received a median score ranging from 4 to 5, indicating that the LKPD is valid based on content validity and construct validity. The conclusion of this study states that the developed cognitive conflict strategy LKPD is valid and can serve as an effective learning medium to reduce students' misconceptions about hydrocarbons based on validity aspects.

The Effect of Implementing the Padlet-Based Socrates Method on Students' Critical Thinking Skills

2025-06-20T15:13:03+00:00

This research aimed to evaluate the effect of applying the Socratic Method based on the Padlet platform on students' critical thinking abilities. This research used a quantitative approach with a quasi-experimental design, pretest-posttest control group type. The research subjects were class IX students of SMP Muhammadiyah 4 Tangerang. The instruments used were essay questions to measure critical thinking skills and observation sheets to assess the implementation of learning. The results of the analysis show that there was a significant difference between the posttest scores of the experimental group and the control group, which is indicated by a significance value of 0.000 (p < 0.05). Apart from that, the average N-Gain score achieved by the experimental group was 0.8, which is in the high category. These findings indicate that the integration of the Socratic Method with Padlet can significantly improve students' critical thinking abilities. Thus, this learning method is worthy of consideration as an alternative strategy in the learning process, especially in developing critical thinking skills at the secondary education level.

Pengembangan LKPD Berbasis Model SSCS (Search, Solve, Create, And Share) Materi Pemisahan Campuran Untuk Menumbuhkan Keterampilan Berpikir Kritis Siswa Kelas VIII SMP

2025-06-18T01:38:38+00:00

Penelitian ini mempunyai tujuan untuk mencari tahu tingkat validitas dan respon siswa terhadap bahan ajar LKPD berbasis model SSCS untuk menumbuhkan keterampilan berpikir kritis siswa. Digunakan model pengembangan 4-D dengan tahapan define, design, develop, disseminate. Metode yang peneliti pakai ialah metode Research and Development (R&D) dengan instrumen berupa angket wawancara, angket respon siswa, dan angket validasi. Data dianalisis secara deskriptif kuantitatif dan kualitatif. Hasil persentase validasi bahan ajar LKPD yang diperoleh dari validator ahli materi 90,20% (sangat valid), validator ahli bahan ajar 87,70% (sangat valid), validator ahli praktisi 90,97% (sangat valid). Hasil dari tingkat respon siswa menunjukkan nilai persentase dengan rata-rata 86,07% (sangat valid). Melalui temuan tersebut dapat ditarik simpulan bahwa LKPD berbasis model SSCS materi pemisahan campuran dapat siswa gunakan pada kegiatan pembelajaran IPA.

Worn Rail Handling Process at Curve No.16A KM 4+8/0 Downtrack Line Manggarai – Tanah Abang

2025-06-13T03:33:06+00:00

Railways is a unified system consisting of infrastructure, facilities, and human resources, as well as norms, criteria, requirements and procedures for the implementation of railway transportation. Railroad infrastructure is a railway line, train stations and train operating facilities. Railway maintenance activities are preventive measures (preventive) and / or replacement in accordance with the technical age. In this study there are several types of maintenance in handling rail replacement on the Manggarai - Tanah Abang crossing. From this study the total wear that occurred from KM 4+800 to 5+00 reached 232.2 meters of track. Wear occurs in curve number 16A. Then there are several treatments carried out such as checking rail material data, replacing rail roads, maintaining forces and electricity, normalizing arrows, and thermite welding. In this rail replacement, maintenance is carried out by inspecting the railroad, maintaining the lighting force whose height must be adjusted to the radius of the curve, and returning the arrows which require prior calculation in carrying out maintenance. Calculation of arrows and elevation must be in accordance with applicable regulations or standards.

Development of E-LKPD Based on Guided Inquiry on Earth Structure Material and Its Development to Facilitate Students' Creative Thinking Skills in the Independent Curriculum

2025-06-17T03:34:54+00:00

Teaching materials are one of the important learning supports. Therefore, the teaching materials used by teachers must be interactive and creative. The purpose of this study was to produce valid E-LKPD teaching materials and to describe the results of student responses to teaching materials in the form of E-LKPD based on guided inquiry on the material of earth structure and its development to facilitate students' creative thinking skills in the independent curriculum. The research method used in this study, namely the Research and Development (R&D) method according to Thiagarajan (1974) which has been adjusted to the needs of researchers, namely only up to the dissemination stage, up to the limited trial stage only. The research instruments used in this study, namely the Science Education expert validation sheet which had previously been validated by instrument experts and student response questionnaire sheets. Data analysis in this study was carried out descriptively quantitatively and qualitatively. The research data obtained the results of the validity level of the development of E-LKPD teaching materials based on guided inquiry on the material of the earth's structure and its development with an assessment by a validator of science education experts obtained a percentage of 88.36% and was included in the category of "Very Valid". For the results of student responses to E-LKPD, the percentage was 88% with the category of "Very Good". So that the use of E-LKPD teaching materials based on guided inquiry on the material of the earth's structure and its development can facilitate students' creative thinking skills and can be used for science learning.

Karakteristik Morfologi Polen Rotan Jernang Endemik Aceh (Calamus acehensis (Rustiami) W.J.Baker)

2025-06-13T04:16:22+00:00

Calamus acehensis (Rustiami), known as Aceh jernang rattan, is an endemic plant with high economic value in Aceh Province. This jernang produces red resin from its fruit which is used as a natural dye for rattan handicrafts as well as in traditional medicine, such as wound medicine, headaches, and post-natal pilis. The advantage of C. acehensis over other jernang species lies in its rapid growth and high resin production at a young age. At the age of two years, the plant has reached a height of two meters and started to bear fruit. Distinctive morphological features include stem internodes up to 50 cm, leaves up to 2 meters long, petioles 35 cm long, and black leaf sheaths with long and dense spines. This study aims to assess pollen morphology to determine its pollination system and taxonomic status. Pollen samples were taken from C. acehensis growing in Rieseh Tengoh Village, Aceh and from cultivation in Jambi. Analysis was conducted using a Scanning Electron Microscope (SEM) at the UGM Integrated Research and Testing Laboratory. Results showed that both samples had small pollen size, 1.212 µm (Aceh) and 1.116 µm (Jambi), with a single monocolpate aperture shape and flat exine ornamentation. These characteristics indicate the potential for wind-assisted cross-pollination (xenogamy) (anemogamy), providing important insights for the conservation and cultivation of Acehnese jernang.

Development of E-Booklet Based on Student Independent Learning on Temperature, Heat, and Expansion for Grade VII

2025-06-13T04:15:26+00:00

Penelitian ini bertujuan untuk mengembangkan E-Booklet berbasis pembelajaran mandiri pada topik Suhu, Kalor, dan Pemuaian, sebagai upaya untuk mendukung peningkatan pemahaman konsep dan pengembangan sikap belajar mandiri yang selaras dengan Kurikulum Merdeka. Inisiatif ini dilatarbelakangi oleh temuan lapangan yang menunjukkan rendahnya tingkat kemandirian dan prestasi belajar siswa, serta terbatasnya fasilitas laboratorium yang menghambat pemahaman konsep secara mendalam. Proses penelitian mengikuti model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation) yang termasuk jenis Penelitian dan Pengembangan. Pada tahap pengembangan, e-booklet divalidasi oleh ahli media, ahli konten, dan praktisi, dengan hasil sebesar 81,08%, 93,06%, dan 86,11% masuk dalam kategori “Sangat Valid”. Sementara itu, respon siswa pada tahap implementasi mencapai 86,81% masuk dalam kategori “Sangat Baik”. Temuan ini menunjukkan bahwa E-Booklet yang dikembangkan tidak hanya layak digunakan sebagai bahan ajar alternatif, tetapi juga efektif dalam meningkatkan pembelajaran mandiri di kalangan siswa SMP kelas VII, khususnya dalam menguasai konsep Suhu, Kalor, dan Pemuaian.

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.