Critical thinking skills of students through problem-based learning assisted by electronic learner worksheet (e-LKPD) of body defense system

Abstract

Critical thinking skills are one of the competencies that must be achieved by students in 21st century learning that can be raised by applying a problem-based learning model. This critical thinking ability can be realized through learning using the Problem Based Learning (PBL) model. In a problem-based learning model, learning media is needed that can support the learning process, one of which is Electronic Learner Worksheets (E-LKPD) which can provide practicality and effectiveness for students in learning. The purpose of this study is to describe students' critical thinking skills after being taught using a problem-based learning model assisted by E-LKPD on the material of the body's defense system for class XI MIPA at SMAN 1 Cluring Banyuwangi in the 2021/2022 academic year. This research is a quantitative descriptive research with the research form Nonequivalent Group Pretest Posttest Design. Sampling was done by purposive sampling technique. Data collection techniques using tests, observation and documentation. The data analysis technique in this study used the N-Gain calculation. The results showed that there was an increase in the critical thinking ability of students who were taught using a problem-based learning model assisted by E-LKPD with an average N-Gain value of 0.4975 in the medium category.