Development of Electronic Worksheet Based on Problem Based Learning on Acid-Base Materials to Develop Students Problem Solving Ability Putri Deti Ratih (1*), Eli Rohaeti (2)
1Master Student of Chemistry Education, Faculty Mathematics and Naturale Science, Universitas Negeri Yogyakarta, Yogyakarta, 55281, Indonesia
2Departement of Chemistry Education, Universitas Negeri Yogyakarta, Yogyakarta, 55281, Indonesia
Abstract
The objective of study were to analyze the characteristics and feasibility of electronic worksheet based on problem-based learning on acid-base materials to develop student problem-solving abilities. The study was Research and Development (R & D) using a 4D modified model by Thiagarajan which consisted of Define, Design, Develop, and Disseminate. Product validation was performed by expert judgment, product practicality test was performed by reviewer and peer reviewer, and readability test was performed by students. Instruments of data collection were formed of product feasibility validation sheets, practicality test assessment sheets, and readability tests. Data analysis techniques used calculation of the average score which was categorized according to ideal assessment criteria. The results of the development research showed that an electronic worksheet based on problem-based learning which was developed in a form of a website consisting of 4 learning activities with problem-based learning syntax adapted to acid-base and an electronic worksheet based on problem-based learning on acid-base was very feasible to be used. Based on validation from expert judgment, practicality test assessments from reviewers and peer reviewers, and readability tests by students including the very good category. Therefore, electronic worksheets based on problem-based learning is suitable for use in chemistry learning on acid-base materials to develop problem-solving abilities.
