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All Journal Best Journal (Biology Education, Sains and Technology) Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Putri Aprillia
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Immunology & microbiology Physics Public Health

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Development of STREAM-Based Student Worksheets for Teaching Fluid Dynamics at SMAN 14 Medan Putri Aprillia; Juniar Hutahaean
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 3 (2026): August (Inpres)
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i3.2608

Abstract

The low learning outcomes of students in dynamic fluid material and the limited use of innovative instructional materials necessitate the development of learning tools that integrate 21st-century skills. This study aims to develop a Student Worksheet based on the STREAM approach that is valid, practical, and effective for Grade XI MIPA students at SMAN 14 Medan. This research employed the Research and Development (R&D) method using the 4-D model, consisting of define, design, develop, and disseminate stages. The research subjects were 36 students of class XI MIPA 3 at SMAN 14 Medan. The research instruments included expert validation sheets, a teacher response questionnaire using a Likert scale, a student response questionnaire using a Guttman scale, and a pretest-posttest assessment. Data were analyzed using Likert and Guttman scales to determine validity and practicality, and the N-Gain test to measure effectiveness. The results showed that the LKPD was highly valid, obtaining 97.90% from the material expert and 87.78% from the media expert. Practicality results indicated 93.22% from student responses and 100% from the physics teacher, both categorized as highly practical. The effectiveness test showed an N-Gain score of 0.89 (89%), indicating that the LKPD was highly effective. It can be concluded that the developed LKPD meets the criteria of being highly valid, practical, and effective, and can serve as an alternative instructional material in physics learning. Furthermore, it enhances students’ learning outcomes while facilitating critical thinking, problem-solving skills, and interdisciplinary integration through the STREAM approach.
Analisis Kesulitan Siswa Dalam Memahami Konsep Tirgonometri Pada Pembelajaran Matematika Rona Maruli Siringo-ringo; Putri Aprillia; Fani Sulistiyani
BEST Journal (Biology Education, Sains and Technology) Vol 8, No 2 (2025): September 2025
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v8i2.12572

Abstract

Konsep Trigonometri adalah bagaimana pemahaman konseptual siswa tentang konsep triginometri. Meskipun guru telah menjelaskan prosedur operasi dalam konsep trigonometri, tetapi siswa masih mengalami kesulitan dalam memahami konsep trigonometri, sehingga prosedur yang ditempuh selanjutnya menjadi terhambat. Kemudian mengembangkan desain didaktis berdasarkan kesulitan siswa. Data dikumpulkan melalui uji kemampuan siswa melalui tes tertulis. Hasil penelitian menunjukkan bahwa siswa mengalami kesulitan disebabkan karena hambatan belajar konsep trigonometri, Hasil implementasi dari desain didaktis awal ini secara umum sesuai dengan prediksi respon siswa yang telah dibuat sebelumnya. Selama proses pengimplementasian ada beberapa respon siswa yang tidak sesuai dengan prediksi sebelumnya, namun hal ini dapat diatasi dengan baik
Co-Authors Fani Sulistiyani Juniar Hutahaean Rona Maruli Siringo-ringo