¹Lestari, Della, ²S. Syamsurizal

¹,²Department of Biology Education, Faculty of Math and Science, Universitas Negeri Padang, Sumatera Barat, Indonesia

DOI : https://doi.org/10.47191/ijsshr/v4-i7-29

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ABSTRACT

This study aims to determine the effectiveness of PBL-based LKPD. The method used was a quasi experimental with a posttest only control design. The population in this study were the students of grade XI MIPA SMAN 6 Merangin for the 2020/2021 academic year. The sample in this study was the students from class XI MIPA 3 as the experimental class and XI MIPA 4 as the control class chosen by using the purposive sampling technique. The research instruments were observation questionnaires, product validation sheets, practicality sheets for teachers and students, and evaluation questions based on critical and creative thinking indicators. Results of the analysis of evaluation questions showed that the mean scores of the critical and creative thinking skills of the experimental class students were higher than the con trol class. The mean scores of critical and creative thinking skills in the experimental class were 73.21 and 73.79. Meanwhile the mean score in the control class were 54.06 and 58.94. The results of the t-test of students' critical thinking were (0.000) < t (0.05) and creative thinking skills were (0.001) < t (0.05). Thus, it indicates that PBL-based LKPD is effective for empowering students' critical and creative thinking skills.

Keywords

Critical Thinking, Creative Thinking, LKPD, PBL.

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VOlUME 04 ISSUE 07 JULY 2021