Atep Sujana, Rendi Restiana Sukardi, Momo Rosbiono, Wahyu Sopandi
The purpose of this research is to improve the fundamental concept and chemical representation of sea pollutant migration through the implementation of the RADEC learning model. Pollutants are solved, ionized, even hydrolyzed in the sea. The research employed a quasi-experimental design with a one-group pre-test and post-test design. The used instrument was four-tier diagnostic tests. It was used to see the improvement of students' fundamental concept and chemical representation on the sea pollutant migration concept. At the end of the class, most of the students' level was lack of knowledge 1 even scientific conception. The statistical data showed there was a significant mean difference between the students' pre-test and post-test, It clearly stated RADEC learning model gave an impact on students’ level of fundamental concepts and chemical representation. The improvement caused by the worksheet. It inspired students to create waste filters or chemical products that can absorb waste in the ocean even created sub-microscopic representations. © 2021, Moroccan Journal of Chemistry. All Rights Reserved.
Primary Education Study Program, Universitas Pendidikan Indonesia, Sumedang Campus, Jl. Mayor Abdurahman No.211 Kotakaler Sumedang Utara, Sumedang, West Java, Indonesia; Primary Education Study Program, Universitas Pendidikan Indonesia, Cibiru Campus, Jl. Raya Cibiru KM 15, Bandung, West Java, Indonesia; Chemistry Education Department, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung, West Java, Indonesia
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