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All Journal Tsaqofah: Jurnal Penelitian Guru Indonesia UNIVERSE : Journal of Science Education Teaching and Learning
Safitri, Violetta
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Education Environmental Science

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THE EFFECT PROBLEM BASED LEARNING ASSISTED BY QUESTION CARDS ON CRITICAL THINGKING SKILLS ON ADDITIVE AND ADDICTIVE SUBSTANCES FOR VIII GRADE STUDENTS OF SMPN 38 PADANG Safitri, Violetta; lestari, Tuti
Universe Vol 5 No 1 (2024): Journal of Science Education Teaching and Learning, Vol 5. No. 1, 2024
Publisher : Department of Science Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/universe.v5i1.585

Abstract

Education is an activity carried out by teachers and students to improve knowledge, skills, character and problem solving in life. Critical thinking skills possessed by learners can be used in solving a problem that may be encountered in everyday life or natural phenomena that arise. The use of effective and interesting learning models can affect the level of critical thinking skills in students. This study aims to determine the effect of problem-based learning model assisted by question cards on additive and addictive substances on critical thinking skills of students in class VIII SMP N 38 Padang. The type of research used is quasy experiment with non-equivalent control group design. The experimental class used a problem-based learning model, while the control class used a conventional learning model with lecture and question and answer methods. The results of data analysis showed hypothesis testing based on pretest data, namely Tcount -0.49 < Ttabel 2.06 and postest Tcount 8.22 > Ttabel 2.06. N-gain data of experimental class 0.72 (high) and control class 0.24 (medium). The conclusion of this study is that there is an effect of problem-based learning model assisted by question cards on the material of additives and addictive substances on the critical thinking skills of students in class VIII SMP 38 N Padang.
Upaya Meningkatkan Motivasi Belajar Menggunakan Media Puzzle Safitri, Violetta; Putri, Rahma Evita; Yenira, Fitria
TSAQOFAH Vol 5 No 3 (2025): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v5i3.6023

Abstract

Teachers hold a critical responsibility in creating engaging learning experiences through innovative pedagogical approaches, one of which is the use of instructional media to stimulate student participation and foster interest, enjoyment, motivation, and curiosity. This study aims to evaluate the effectiveness of instructional media in enhancing student activity and motivation. A mixed-methods approach was employed, collecting qualitative data through direct observation and interviews, and quantitative data through student performance assessments. The researcher was directly involved in the teaching process of Class VIII to gain contextual understanding of student behaviors and responses during learning. Observation results indicate that in Cycle I, student participation reached 60% in the first session and 72% in the second session, with an average of 66%. In Cycle II, there was a significant increase, with 80% participation in the first session and 96% in the second, averaging 92%. These findings demonstrate that the consistent use of instructional media can gradually enhance student participation and learning activity. Therefore, integrating media as part of a cycle-based instructional strategy is effective in creating an interactive and motivating learning environment.
Co-Authors Lestari, Tuti Putri, Rahma Evita Yenira, Fitria