Dimas Gigih Damarsari
MAS As Surkati, Salatiga, Central Java, Indonesia

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Pengaruh Model Pembelajaran terhadap Keterampilan Berpikir Kreatif Siswa pada Pembelajaran IPA di Jam Pelajaran Terakhir Nabilla Zhohirya; Dimas Gigih Damarsari
Co-Catalyst: Journal of Science Education Research and Theories Vol. 2 No. 2 (2024): Dec 2024 Issue
Publisher : LPPM - Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/cocatalyst.v2i2.11956

Abstract

This study investigates the impact of learning models on students’ creative thinking during the final hour of science instruction, a time often marked by student fatigue and disengagement. Using a Classroom Action Research (CAR) method through two cycles, the study applied a Project-Based Learning (PBL) model integrated with cooperative learning strategies. The participants consisted of 14 vocational high school students in West Java, selected due to their low creative thinking scores. Quantitative data collected through observations and performance-based assessments revealed a significant improvement in creative thinking skills, with scores increasing from an average of 56% before intervention to 88% after the second cycle. These findings suggest that PBL can effectively enhance student engagement and higher-order thinking, particularly in time-constrained instructional settings. The study offers practical implications for educators seeking to optimize learning in less favorable time slots.
Improving Students' Understanding of Substance Changes through the Use of Household Materials in Science Practicum at Private Junior High School Winda Putri Alyani Hulu; Dimas Gigih Damarsari
Co-Catalyst: Journal of Science Education Research and Theories Vol. 2 No. 2 (2024): Dec 2024 Issue
Publisher : LPPM - Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/cocatalyst.v2i2.12067

Abstract

This study aims to improve students' understanding of substance changes using household materials that are easily obtained. The concept of substance changes, which encompasses both physical and chemical changes, can be challenging for students to grasp when presented solely through lecture methods or visual media. Limited laboratory facilities in schools pose a significant challenge for many teachers, particularly at Abdi Pusaka Indonesia Private Junior High School, which has a limited number of students and resources. This study used the one-group pretest-posttest method with a subject of 10 students in class VIII. Materials used in the practicum included ice cubes, candles, paper, baking soda, and vinegar. The results showed an increase in student understanding, with an average pretest score of 60 to 85 in the posttest. The average gain score calculated is 0.63, which is included in the moderate category. In addition, student activity during the practicum increased significantly, and almost all students stated that this method was interesting and helpful in understanding the material. This study shows that the use of household materials in science practicum is effective in improving students' understanding of the concept of substance changes.