The Effectiveness of Worksheets Based on The Scientific Approach in Improving Critical Thinking Skills
Rosliana Siregar (a), Muhammad Daut Siagian (a*), Tuti Hardianti (b), Lisa Ariyanti Pohan (c), Suwanto (d)

(a) Program Studi Pendidikan Matematika, Universitas Islam Sumatera Utara, Jl. Sisingamangaraja, Teladan-Medan, Sumatera Utara 20217, Indonesia
mdsiagian[at]fkip.uisu.ac.id
(b) Program Studi Pendidikan Fisika, Universitas Islam Sumatera Utara, Jl. Sisingamangaraja, Teladan-Medan, Sumatera Utara 20217, Indonesia
(c) Program Studi Pendidikan Kimia, Universitas Islam Sumatera Utara, Jl. Sisingamangaraja, Teladan-Medan, Sumatera Utara 20217, Indonesia
(d) Program Studi Pendidikan Matematika, STKIP Asy-Syafi^iyah Internasional Medan, Jl. Karya Tani No. 1, Pangkalan Masyhur, Kec. Medan Johor, Kota Medan, Sumatera Utara 20146, Indonesia

Abstract

A scientific approach is a learning approach that uses scientific steps as a reference for learning. The scientific approach aims to improve intellectual abilities, especially students^ high-level critical thinking skills. This study aims to describe the effectiveness of worksheets based on a scientific approach in improving students^ critical thinking skills. The method used in this study is research and development using the 4D model. This paper discusses the develop stage. The subjects in this study were 10th-grade students at a private high school in Medan. While the object in this study is the students^ critical thinking skills. Data collection was carried out by giving tests, questionnaires, and observations. The instruments used were tests and questionnaire sheets. Based on the results of the study, it was found that the worksheets based on the scientific approach developed had the effectiveness category in terms of (1) classical student learning completeness- and (2) student responses.

Keywords: Scientific Approach- Critical Thinking- Effectiveness

Topic: Mathematics Education