Development of computational chemistry-based learning media on the subject of isomers of organic chemical reaction course

Abstract

Computational Chemistry is an energy calculation and 3-D visualization using J-Mol software which was previously made by using Avogadro and NWChem software. This study aims to: 1) develop learning media based on computational chemistry and produce the most stable energy; 2) determine student responses toward learning media which have been developed. The subjects in this study were third semester students who were taking courses of organic chemistry reactions. Type of the research is developmental research (R&D) by using the ADDIE model. The stages of this research are Analysis, Design, Development, Implementation and Evaluation. Computational chemistry-based learning media were validated by 3 expert validators, which are detailed as follows: 2 material expert validators and 1 media expert validator based on the National Education Standards Agency (BSNP). The data collection technique used learning media validation questionnaire and student perception questionnaire. The results showed that the validation toward material design, language, and presentation respectively were 92%, 97% and 95%. It means that the media was very feasible to be used and did not need to be revised; briefly speaking, the media are valid. In addition, students gave a positive response to the computational chemistry-based learning media as indicated by the results of the student perception questionnaire in which the presentation obtained was 86% which is categorized into very good category. Eventually, the computational chemistry-based learning media that has been developed is feasible to use.