Development of multi-representation based electronic book on inter molecular forces (IMFs) concept for prospective chemistry teachers

Abstract

The purpose of this research was to develop a multi-representation based e-book on the concept of intermolecular forces that is valid and feasible for use. The form of research used was Research and Development (R&D), which refers to the ADDIE development model consisting of five stages, namely analysis, design, development, implementation and evaluation. Data collection tools at the analysis stage were broken down to interview guidelines and observation sheets. At the development stage, the data collection tools used were content validation sheets (Content Validity) and views (Face Validity). At the implementation stage, the data collection tool utilized was an test of understanding on the concept of intermolecular forces. The results of content validation indicated that the developed e-book was valid. The face validity results showed that the correspondents were in agreement that the e-book had writing style and fonts that were easy to read, material explanations and videos that were easy to understand and images that were corresponding to the contents of the material. Overall, the ebook was found to be easily utilised and the material related to daily life. The ebook obtained learning outcomes that were to be highly mastered by the students.