The learning process has not emphasized the development of skills; this is because in learning students tend to memorize concepts so that learning outcomes and self-efficacy are not trained optimally. The formulation of the problem in this study is: is there a difference in learning outcomes and student self-efficacy between the use of the Problem Base Learning model combined with the E-STEM-based Student Worksheet with the Problem Base Learning model on environmental pollution material at MAN Banda Aceh? This research is quantitative with an experimental research approach. The research design used was pretest-posttest control group design. The population of this study was all students of class X MAN 3 Banda Aceh, totaling 84. The sampling technique used a total sampling of 84 students. The instrument used to measure learning outcomes is multiple choice questions using 30 questions and self-efficacy is measured using a questionnaire. Data analysis of learning outcomes and self-efficacy of students using independent sample t-test at a significant level of 0.05. The results showed that there were differences in student learning outcomes and self-efficacy after applying the Problem Base Learning model combined with the E-STEM-based Student Worksheet on environmental pollution materials at MAN Banda Aceh
The learning process has not emphasized developing problem-solving skills since students memorize concepts, thus, the skills are not optimally trained. This study aimed to compare students' problem-solving skills between groups of students using the Problem-based Learning (PBL) model with the E-STEM-based student worksheet and the PBL-only model on environmental pollution at one of the Islamic Senior High Schools in Banda Aceh, Indonesia. This study employed a quantitative method with an experimental research approach using the pretest-posttest control group design. The population was all grade 10 students at the school studied, and the sample was 84 students using a total sampling technique. The instrument was ten long answer questions to measure problem-solving skills. Analysis of students' problem-solving skills data was done by t-test at a significant level of 0.05. The results indicated differences in students' problem-solving skills after experiencing the PBL model applied combined with an E-STEM-based student worksheet on environmental pollution.
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