I. Widowati, N. Aznam, S. Purtadi
This research aimed to identify the quality of the developed teacher's supporting book which is the POE demonstration for reaction rate, acid base solution, and colloidal system based on the assessment from experts. The assessing experts consisted of a content expert, a learning expert, and a media expert. The content expert assessed the book based on the feasibility of the content component. The learning expert assessed the book based on the feasibility of the presentation component. The media expert assessed the book based on the feasibility of the readability (language and image) and the graphic components. Based on the results of the expert's assessments, it can be seen that the quality of the book in terms of the material or content components was categorised as 'very good', the presentation component was categorised 'very good', the readability component (language and image) was categorised as 'good', and the graphic component was categorised as 'good'. Overall, the quality of the developed books was categorised as 'very good', so that it is feasible to be teacher's supporting book in demonstrating chemistry materials for reaction rate, acid base solution, and colloidal system based on POE strategy. © 2020 Published under licence by IOP Publishing Ltd.
Chemistry Education, Universitas Negeri Yogyakarta, Sleman, Indonesia
