PENDIPA Journal of Science Education

The Effect of the ReCODE Learning Model on Students' Critical Thinking Skills and Scientific Literacy

Endah Suwita Ningsih — 2025-09-16

This study aimed to develop students' critical thinking skills and scientific literacy. This type of research is a quasi-experimental research, using a Non-Randomized Control Group research Design. The sample of this study was divided into 2 groups, namely the experimental group and the control group. The data collection technique was carried out through 5 essay questions for each variable, namely critical thinking skills and scientific literacy skills. The results of the t-test showed that sig. (2-tailed) of 0.000 was smaller than 0.05, which means there was an influence on the critical thinking skills and scientific literacy of MTsN 2 Kaur students. Teachers are advised to start implementing the ReCODE model gradually, especially in science learning that emphasizes conceptual understanding and high-level thinking. Schools and policy makers are expected to provide support in the form of adequate training and learning facilities.

Pengaruh Model Pembelajaran Guided Discovery Learning Terhadap Keterampilan Berpikir Kreatif Siswa Kelas X Pada Materi Struktur Atom

Theresa Sipayung — 2025-09-16

This study aims to determine the effect of the Guided Discovery Learning model on the creative thinking skills of Class X students in the topic of atomic structure at SMA Negeri 6 Pematangsiantar. The research method used was a quasi-experimental design by comparing an experimental class with a control class. The results showed an improvement in students’ creative thinking skills in the experimental class. This can be seen from the increase in the average pre-test score of 81.25 to the post-test average score of 87.47. Hypothesis testing also supports this finding, where the tcount value of 3.879 is greater than the ttable value of 1.699, and the significance value (2-tailed) of 0.000 is smaller than α (0.05). Therefore, it can be concluded that the Guided Discovery Learning model has a significant effect on students’ creative thinking skills in Class X on the topic of atomic structure.

Implementasi Media Pembelajaran Cardrat Berbasis Learning by Asking Berbantuan App Inventor pada Materi Biomolekul Karbohidrat

Mellyta Uliyandari — 2025-09-16

This study aimed to implement the Cardrat (Carbohydrate) learning media, developed using the “learning by asking” approach and supported by App Inventor, on the biomolecule carbohydrate topic to improve student learning outcomes. The research employed a quasi-experimental design with participants consisting of Science Education students at the Faculty of Teacher Training and Education, University of Bengkulu, who had completed the Biochemistry course. The instruments used included validation questionnaires, readability tests, and pretest posttest assessments. Validation results indicated that the media was categorized as highly feasible, with scores of 73 and 56 for material and media aspects, respectively. The readability test produced an average score of 83.67, falling into the “very good” category. In terms of learning outcomes, both groups showed improvement. In the control class, the average score increased from 34.52 to 76.54 (N-gain 0.64), while in the experimental class it rose from 35.46 to 80.23 (N-gain 0.69). These findings demonstrate that the Cardrat media, based on a learning-by-asking approach and supported by App Inventor, is more effective in enhancing learning compared to conventional methods.

Potret Proses Pembelajaran Fisika Kelas X SMA Di Kabupaten Sikka

Kristiana Nathalia Wea — 2025-09-16

This study aims to analyze the physics learning process in grade X of senior high schools in Sikka Regency, focusing on learning approaches, student engagement, as well as supporting and inhibiting factors during the learning activities. The research employed a descriptive non-experimental method using observation techniques in eight schools, with an instrument in the form of an observation sheet that had been tested for content validity. Data were analyzed through the stages of reduction, presentation, and conclusion drawing. The findings revealed that the aspect of the role of physics in education scored 77%, the learning approach aspect 78%, and the aspect of handling students with diverse abilities 67%. Teachers have been fairly effective in fostering logical and critical thinking, as well as creating active and contextual learning interactions. However, the implementation of inclusive learning, the use of technology for differentiation, and assessment variety still need improvement. This study recommends strengthening differentiated learning strategies, implementing diagnostic assessments, and utilizing interactive media such as Genially to enhance the quality and inclusiveness of physics learning.

Penerapan Project Based Learning Berbasis Video Animasi untuk Meningkatkan Hasil Belajar Siswa Kelas X pada Materi Struktur Atom

Lourdes Simamora — 2025-09-16

This study aimed to investigate the effect of applying the Project Based Learning (PjBL) model assisted by animated videos on students’ learning outcomes in atomic structure material at Grade X of SMA Negeri 3 Pematangsiantar. The research employed a quasi-experimental design with a pretest-posttest control group. The participants consisted of two classes: the experimental class, which received instruction using PjBL assisted by animated videos, and the control class, which received conventional instruction. The research instrument was a learning achievement test administered before and after the treatment. Data were analyzed using a t-test and N-Gain calculation. The results indicated that the average pretest scores of both classes were relatively the same. After the learning intervention, the average posttest score of the experimental class increased significantly compared to the control class. The average N-Gain score of the experimental class was in the medium/high category, while that of the control class was in the low/medium category. The t-test result showed a significance value of p < 0.05, indicating a significant difference between the two classes. It can be concluded that the implementation of the Project Based Learning model assisted by animated videos has a positive effect on improving students’ learning outcomes in atomic structure material.

Development of Ecoliteracy-Based Pocket Books for Grade VII Junior High School Students

Lyra Virnanda — 2025-09-15

Current environmental problems are often referred to as the triple planetary crisis, where this phenomenon refers to three environmental problems, namely climate change, pollution and biodiversity loss. This phenomenon occurs because of the lack of public concern for the environment. In the midst of the environmental issue phenomenon, a person must be able to protect the environment, the most effective way to produce a generation that cares about the environment can start from the world of education. Based on observations and interviews that have been carried out, the current ecoliteracy skills of students are still not optimal, so this study aims to describe the results of validation from experts and readability tests by students on the development of ecoliteracy-based pocket books for junior high school students in grade VII on the material of interactions between living things and the environment. This study uses the Research and Development method with the ADDIE (Analyze, Design, Development, Implementation and Evaluation) development model, implemented at a Public Junior High School in Serang City with a sample of 30 grade VII students. The analysis was carried out qualitatively and quantitatively with the results of the study showing that ecoliteracy-based pocket books have a "very valid" level of validity. Validation by experts obtained a percentage of 84% and readability test with a percentage of 88%. Based on the results, the developed teaching materials are considered very valid, so they are worthy of being used for the learning process and further testing on a wider scale.

Pengaruh Penerapan Model Pembelajaran Treffinger Terhadap Hasil Belajar Siswa Pada Materi Struktur Atom di SMA Negeri 2 Pematangsiantar

Ruth Grace Pinondang Silaban — 2025-09-15

Penelitian ini bertujuan untuk mengetahui Pengaruh Penerapan Model Pembelajaran Treffinger Terhadap Hasil Belajar Siswa Pada Materi Struktur Atom. Penelitian ini dilaksanakan di SMA Negeri 2 Pematangsiantar dengan populasi siswa kelas XI yang terdiri dari 2 kelas. Penelitian ini menggunakan jenis penelitian Kuantitatif dengan desain menggunakan metode Quasi Experiment dengan desain non-equivalent control group desain. Sampel penelitian ini ialah kelas XI-4 sebagai kelas Eksperimen dan Kelas XI-5 sebagai kelas Kontrol. Teknik pengumpulan data dalam penelitian ini dilakukan melalui pre-test sebelum diberikan perlakuan dan post-test setelah diberi perlakuan. Teknik analisi data yang digunakan ialah uji hipotesis yang terdiri dari uji paired sample t-test dan uji independent sample t-test untuk membandingkan antara kelas eksperimen dan kelas kontrol. Berdasarkan hasil uji paired sample t-test diperoleh nilai pada kelas eksperimen mengalami peningkatan dengan rata-rata nilai pre-test yang diperoleh 53, 53 dan rata-rata nilai post-test 89,59 dan dengan nilai t_hitung 28,067 lebih besar dari t_tabel 1,692, dengan nilai sig (2-tailed) yang diperoleh 0,000 < 0,05. Pada uji independent t-test diperoleh nilai post-test pada kelas kontrol sebesar 83,35 dan eksperimen 89,59. Dengan nilai t_hitung sebesar 5,054 lebih besar dari t_tabel 1,668 dan nilai sig (2-tailed) diperoleh 0,000 < 0,05. Dari kedua uji hipotesis yang dilakukan H₀ ditolak dan H_a diterima, dapat disimpulkan bahwa adanya pengaruh penerapan model pembelajaran Treffinger terhadap hasil belajar siswa pada materi Struktur Atom.

Strategi STEAM (Science, Technology, Engineering, Art, and Mathematics) dan Dampaknya terhadap Literasi Sains Materi Ekosistem Peserta Didik Kelas V

Azka Millati Qonita — 2025-09-15

This study aimed to describe the effect of applying the Science, Technology, Engineering, Art, and Mathematics (STEAM) strategy on students’ science literacy in the ecosystem material of grade V at SDN 44 Pontianak Barat. The research employed a quantitative approach with a quasi-experimental design type pretest-posttest control group design. The sample consisted of 52 students selected using a random sampling technique. Data were collected through observation, tests, and documentation, and analyzed using instrument analysis, prerequisite tests, hypothesis testing, and effect size measurement. The results showed that the average science literacy score in the control class increased from 42.08 (low) to 57.09 (moderate), while in the experimental class it increased from 49.02 (low) to 83.23 (high). Hypothesis testing obtained a significance value of 0.001 < 0.05, indicating a significant difference between the use of STEAM and conventional strategies. The effect size of Cohen’s d was 1.055 > 0.8, which falls into the large effect category. Thus, the application of the STEAM strategy has a positive and significant effect on improving elementary school students’ science literacy.

Pengaruh Berpikir Metaforik Berbasis Strategi REACT Terhadap Hasil Belajar Siswa Kelas X SMA Pada Materi Struktur Atom

Triska Idawati Situmorang — 2025-09-15

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan berpikir metaforik berbasis strategi REACT terhadap hasil belajar siswa kelas X SMA pada materi struktur atom. Metode penelitian yang digunakan adalah kuasi eksperimen dengan desain pretest-posttest control group design. Sampel penelitian terdiri atas dua kelas, yaitu kelas X-2 sebagai kelas kontrol (30 siswa) yang menggunakan pembelajaran konvensional dan kelas X-3 sebagai kelas eksperimen (30 siswa) yang menggunakan strategi REACT berbasis berpikir metaforik. Instrumen penelitian berupa tes hasil belajar yang telah diuji Validitas,Realibilitas,Tingkat kesukaran soal dan uji daya beda. Hasil penelitian ini menunjukkan
adanya peningkatan signifikan pada hasil belajar siswa kelas eksperimen, dengan rata-rata nilai pretest sebesar 49,67 dan posttest sebesar 84,50. Uji paired sample t-test menghasilkan thitung = 18,094 > ttabel = 1,671 dengan nilai signifikansi 0,000 < 0,05, sehingga terdapat perbedaan signifikan antara nilai pretest dan posttest pada kelas eksperimen. Selain itu, hasil uji independent sample t-test menunjukkan thitung = 3,747 > ttabel = 1,672 dengan nilai signifikansi 0,000 < 0,05, yang berarti terdapat perbedaan signifikan hasil belajar antara kelas kontrol dan kelas eksperimen.Dengan demikian, dapat disimpulkan bahwa penerapan berpikir metaforik berbasis strategi REACT berpengaruh positif dan signifikan terhadap peningkatan hasil belajar siswa pada materi struktur atom.

The Effect of Using Pocket Books on Ecosystems on the Critical Thinking Skills of Seventh Grade Students

M. Abriyanto — 2025-09-15

The purpose of this study was to determine the effect of pocket books on critical thinking skills related to the ecosystem theme among seventh-grade junior high school students. The study was conducted at SMPN 17 City of Serang using a quasi-experimental method with a nonequivalent control group design. Research instruments included critical thinking tests and student response questionnaires. Results showed an increase in critical thinking skills in the experimental class that used the pocket book, with an average posttest score of 79.5, compared to 72 in the control class. A Mann-Whitney test revealed a significance value of 0.001 (less than 0.05), indicating a significant effect. The effect size value of 0.957 indicates a large effect. Based on these results, it can be concluded that using pocketbooks on the theme of ecosystems effectively improves students' critical thinking skills.

Efektivitas Model Pembelajaran Problem Based Learning Berbantuan Canva Terhadap Pemahaman Konsep Sistem Koloid Siswa Kelas XI

Imanuel Gideon Sihombing — 2025-09-15

The purpose of this study was to determine the effectiveness of the Problem-Based Learning model assisted by Canva on the understanding of colloid system concepts among 11th grade students at SMAN 1 Girsang Sipanganbolon using an experimental research method with a quasi-experimental design. Data collection techniques used a multiple-choice test validated by expert validators, with instruments consisting of problem-solving ability test questions. The research subjects were 60 students from Grade XI Science Class 2 and Grade XI Science Class 4. Data analysis techniques included normality tests, homogeneity tests, and hypothesis testing using the paired sample t-test.The results obtained in this study indicate an improvement in the learning outcomes of grade XI students at SMAN 1 Girsang Sipanganbolon, particularly in the subject matter of colloid systems. This improvement in learning outcomes can be seen from the average pretest score of 49.67 and the average posttest score of 84.67 in the experimental class. These scores indicate a significant improvement in student learning outcomes. The homogeneity test was conducted, and the significance value obtained was greater than 0.05 (> 0.05), thus meeting the criterion where the sample is homogeneous. In the paired sample t-test, the t-value obtained was 18.542, which is greater than the t-table value of 1.699, and the sig (two-tailed) was 0.000, which is smaller than the α value (0.05), thus concluding that the problem-based learning model assisted by Canva is effective in improving students' understanding of colloid systems in grade XI at SMAN 1 Girsang Sipanganbolon.