Development of Student Activity Sheet (Worksheet) Based on Guided Inquiry to Improve Student’s Critical Thinking Skillsin Senior High School

Abstract

This study aims to 1) produce good worksheets based on Guided Inquiry and fit to be used, 2) increase student’s learning activities using worksheets based Guided Inquiry, 3) increase student’s critical thinking skills using worksheets based Guided Inquiry. This study uses research and development (R & D) model of Borg and Gall. The population in this study were all students of first senior high school in Bintang Laut Teluk Dalam 2016/2017. Samples were taken by cluster random sampling of the class which consist of 28 students. Type of instrument used was test type and questionnaire type. Data analysis used N gain test. The results showed: 1) worksheet development had "very good" criteria and fit for use, 2) improving of learning activity average were 79.98%, 3) improving of student’s critical thinking skills was 0.7 with a high gain.

Keywords: worksheet, guided inquiry, critical thinking