Life Skill Integrated Science-PBL Module to Improve Critical Thinking Skills of Secondary School Students

This study was intended to: (1) describe the results of the development of the Life Skill integrated Science-PBL module, (2) analyze the feasibility of the Life Skill integrated Science-PBL module, and (3) oversee the effectiveness of the module to improve critical thinking skills of students at the secondary school level. The development model used was the 4D Thiagarajan model which consisted of four stages of development, namely define, design, develop, and disseminate. The study sample was taken as many as 97 students from three different schools. The data collection instruments were questionnaires, observation sheets, and tests of critical thinking skills. The feasibility test involved material and media expert lecturers, as well as practitioners. The effectiveness of the module was measured by finding a normalized gain score for the pretest-posttest conducted during a field trial or implementation trial. The results suggested that the Life Skill integrated Science-PBL module was suitable for use in the learning process based on the results of the validation of experts and practitioners. The calculation of the N-gain obtained the value of 0.72, which meant that the Life Skill integrated Science-PBL module was effective in improving students' critical thinking skills. The results of the questionnaire analysis of student and teacher responses showed that overall, the module received good responses.