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PENGARUH PENERAPAN MODEL PjBL BERBASIS STEM UNTUK MENINGKATKAN HASIL BELAJAR DAN KETERAMPILAN BERPIKIR KRITIS SISWA KELAS VIII SMP Anastasya Margaretha Rumapea; Ni Wayan Suriani; Ester Caroline Wowor; Zusje Wiesje Merry Warouw; Wilce Anna Cahya Kuendo
EDUPROXIMA : Jurnal Ilmiah Pendidikan IPA Vol 8, No 2 (2026)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/.v8i2.9513

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar dan keterampilan berpikir kritis peserta didik melalui penerapan model project based learning (PjBL) berbasis STEM pada materi sistem pencernaan. Jenis penelitian menggunakan kuantitatif tipe pra-eksperimental dengan one group pre-test post-test design. Teknik pengumpulan data dalam penelitian ini adalah tes. Instrumen penelitian berupa tes hasil belajar yang turut mengevaluasi indikator keterampilan berpikir kritis. Analisis data dalam penelitian ini melalui uji normalitas, uji hipotesis, dan uji N-gain. Hasil penelitian menunjukkan: (1) data berdistribusi normal berdasarkan uji normalitas; (2) terdapat pengaruh signifikan penerapan model PjBL berbasis STEM terhadap hasil belajar dan keterampilan berpikir kritis peserta didik berdasarkan uji paired sample t-test; dan (3) penerapan model PjBL berbasis STEM memiliki tingkat keefektivan yang tinggi terhadap hasil belajar dan keterampilan berpikir kritis peserta didik berdasarkan uji N-Gain. Dengan demikian, peneliti menyimpulkan bahwa penerapan model PjBL berbasis STEM efektif dalam meningkatkan hasil belajar dan keterampilan berpikir kritis peserta didik pada materi sistem pencernaan di kelas VIII A SMP Negeri 4 Tondano.
Evaluation of Students’ Collaboration Skills Through Practicum-Based Learning Heri Setiawan; Mizwar Mizwar; Mellyatul Aini; Wilce A. C. Kuendo; Ester C. Wowor
Jurnal Akademika Kimia Vol. 15 No. 3 (2026)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2026.v15.i3.pp167-174

Abstract

These skills are very important for science education students, especially in carrying out practicum activities. The sample used in this study consisted of 12 science education students in their early semester. The method used in this study is quantitative descriptive. Data in the study were obtained directly from the research subjects. This study used a rubric to assess collaboration skills, with scores ranging from 1 to 4. The research instruments have been validated by five Science Education lecturers and are deemed feasible for measuring students' collaboration skills. The research results, based on the indicators of Contribution, Problem Solving, Working with Others, Time Management, and Investigation Techniques, showed average scores of 3.75, 3.33, 4.00, and 3.50, with all indicators falling into the very good category, while the overall average score was 3.67. The data show that the collaboration skills of science education students during laboratory sessions are very good. The results of this study indicate that collaboration skills play an important role in supporting the success of the learning process. Based on these findings, it can be concluded that early-semester science education students already have very good collaboration skills during practicum activities, as reflected in high achievement across all measured indicators. Therefore, these findings have significant implications both theoretically and practically in the field of education.