The Effectiveness of the Basic Chemistry Law LKPD Based on Guided Inquiry Learning on Student Learning Outcomes in Phase E of SMA/MA

Abstract

The basic chemistry law material is one of the abstract and difficult to understand chemistry topics for students. Therefore, instructional materials are needed to enhance understanding and learning outcomes for students using LKPD based on Guided Inquiry Learning. The purpose of this study is to test the effectiveness of using LKPD instructional materials based on Guided Inquiry Learning for the basic chemistry law material on the learning outcomes of Phase E students in class X at SMA N 1 Gunung Talang. This research is a quasi-experiment. The study uses a Non-equivalent Control Group Design. The population in this study is all students in class X at SMA N 1 Gunung Talang in the even semester of the 2023/2024 academic year. The sampling technique was conducted using purposive sampling method. The research instrument consisted of a multiple-choice test that has been validated for validity, reliability, item discrimination, and good difficulty index. The data were analyzed using N-Gain test and hypothesis testing with independent sample t-test. The data analysis results indicate that the experimental group has a higher N-Gain compared to the control group in the moderate category. Additionally, the hypothesis testing results show that the t_count value is greater than the t_table value, so that, H0 is rejected. From these data analysis results, it can be concluded that the using LKPD based on Guided Inquiry Learning in basic chemistry law material is effective in improving student learning outcomes.