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Tri Dewi Apriyani
Department of Chemical Education, Faculty of Teacher Training and Education, University of Lampung, Bandar Lampung, Indonesia
Chemistry Education Environmental Science Materials Science & Nanotechnology

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The Effectiveness of Problem-Based Learning on the Hoax Informations to Improve Students’ Critical Thinking Skills (Related to Some Foods and Beverages) Tri Dewi Apriyani; Noor Fadiawati; M. Mahfudz Fauzi Syamsuri
International Journal of Chemistry Education Research VOLUME 3 ISSUE 1, FEBRUARY 2019
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol3.iss1.art3

Abstract

The hoax informations that spread through social media had a negative impact on society. Therefore, research had been conducted in Gedongtataan Upper Secondary School No.1  to describe the effectiveness of problem-based learning model on hoax informations in improving students' critical thinking skills. This study was used the matching only pretest-posttest control group design. The sample in this study was the 11th grade of IPA 4 (experimental class) and the 11th grade of IPA 5 (control class) which was obtained by using purposive sampling technique. The results showed that the average n-gain in the experimental and control classes was 0.7 and 0.6, respectively. Based on this, it could be concluded that the problem based learning model on the hoax informations was effective in improving students' critical thinking skills. Keywords: critical thinking skills, hoax informations, problem-based learning.
Co-Authors M. Mahfudz Fauzi Syamsuri Noor Fadiawati