Development of Interactive E-books on Plane Figures Materials to Improve Problem Solving Ability of Grade IV Students

Abstract

The purpose of this study was to analyze content validity, practicality, readability, effectiveness, and student responses using an interactive e-book of plane figures materials designed to improve the problem-solving abilities of fourth grade students. This research is Research and Development (R&D) with ADDIE design which includes five stages: analysis, design, development, implementation, and evaluation. The interactive e-book was validated by two validators, namely material experts and media experts. The small scale trial involved six fifth grade students of SD 1 Pasuruhan Lor, the large scale trial involved 38 fourth grade students of SD 1 and SD 2 Pasuruan Lor. Interviews, questionnaires, and tests were all used to collect data. The results showed that the content validity was 86.67% with very good criteria for material expert validators and 96.49% with very valid criteria for media expert validators. Readability is 63.13% with easy to understand criteria. Practicality is 89.41% with very practical criteria according to the results of teacher practicality questionnaires, and 93.29% with very practical criteria according to student practicality questionnaires. The effectiveness is determined by the classical completeness score of 76.32% > 75% and the N-gain value of 1.49 with very high criteria. Students responses to interactive e-books is 92.42% with very good criteria. Based on the results of the research, it can be stated that the development of an interactive e-book of plane figures materials to improve the problem-solving abilities s of fourth grade students is valid, readable, practical, effective, and gets a good response from students. Keywords: Interactive e-book, Circumference and Area, Problem Solving Skills.