The Identification of Intertextual-Based E-Book to Develop Student's Representational Ability on the Concept of Buffer Solution

In chemistry education, it is necessary to understand each level of representation. The research aims to improve the representational ability of the buffer solution concept with an intertextual-based e-book prototype. Besides each level of representation, the relationship between the levels must be understand too since students' inability to visualize structures and processes at the submicroscopic or molecular level can lead to misconceptions.The observer's assessment of the implementation of interactive e-books in learning has a percentage of 83.31%, categorized as very high. This study uses a literature review of 40 articles and four chemistry textbooks.According to the literature study, multimedia tools have demonstrated their power and value for modeling, learning, and assessment perspectives due to their visualization nature, multiple representational links, and dynamics. One of the learning media that can contain multimedia is an interactive e-book. The study results are one of the efforts to improve representational abilities in buffer solutions, namely intertextual-based e-books, which can visualize concepts in chemistry and improve conceptual understanding