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

Abstract

Critical thinking skills are one of the cognitive skills that are necessary for learners in the 21st century. The government implements the 2013 curriculum to improve learners ' critical thinking skills with one of its components of teaching materials in a student's worksheet (LKPD). The problem is that the use of LKPD is still lacking in facilitating learners ' critical thinking skills. This research aims to develop the LKPD on the concept of biodiversity that is valid, practical, and effective. The research methods used are Tessmer design, which includes: expert review, one-to-one evaluation, and small group evaluation. The LKPD structure was developed referring to Daryanto & Dwicahyono and critical thinking skills referring to the Facione 1990. Subject validation includes three experts, one to one evaluation subjects are three learners of class X SMA, and a small group evaluation subject is six students of class X SMA. The results showed that the effectiveness of expectations seen from the assessment of critical thinking skills of learners in completing the LKPD belongs to a very good category.