CT skills are one of the skills required by students in facing the real world problems in 21st century era. They can be trained by using several approaches in science learning context. However, there is a little study focused to investigate the impact of IA toward CT skills. This present study investigated the implementation of IA to enhance students’ CT skills. The experimental study, which was one group pretest posttest design, has been conducted to garner data from participants. There were 36 students (grade XI) who contributed as participants and they came from one public senior high school in Indonesia. In order to obtain data, an instrument related to CT skills was developed dealing with physics concepts. This finding revealed that students’ CT skills enhanced in medium category based on normalized gain (N-gain). A consideration of the implication of this present study is a deep insight in students’ CT skills in Indonesian high schools.

No abstract

The aim of this study was to develop an inquirybased students' worksheet which was applied to work and energy materials. Each stage facilities students to improve their critical thinking skills. The development is carried out in stages, namely preliminary study, planning and goal setting, initial product development, feasibility assessment, limited trials, revision of initial product, field trials, and revision of final product. The students' worksheet was validated by the expert, the colleagues, and the education practitioner. The data validation used questionnaire. Students' worksheet are validated from construction, material and the suitability Inquiry requirements. The students' worksheet revised according to the advice of the experts. It can be concluded that the students' worksheet by using guided inquiry in the category of very feasible so that it could be applied in physics learning.