Development of Worksheets for High School Biology Student-Based On Critical Thinking Skills on the Circulation System Concept

Abstract

Learning in the 2013 curriculum requires a learning process that refers to the scientific approach. The teacher becomes the centre of learning in the current educational problems, students accepting learning as an abstract does not have the opportunity to develop their thinking skills. The purpose of this study is to develop a valid, practical, and effective Educator Worksheet (LKPD). This study uses the Tessmer design method, which consists of (1) expert review; (2) one-to-one; and (3) small group. Subjects of expert opinion research included two biology education lecturers and one high school biology teacher. Individual test subjects were three students educated. The small group test subjects were six students who were educated. The type of data obtained includes data effectiveness expectations. The results obtained from the effectiveness of expectations based on students' critical thinking skills in working on LKPD have very good categories (including analysis, reference, and exploration) and have good categories (including interpretation and self-regulation). Interpersonal skills (collaborating) and intrapersonal skills (conscientious) students have very good categories with scores of interpersonal skills and intrapersonal skills 86.33%.