Development of Interactive Digital Book Learning Media Based on Realistic Mathematics Approach to Improve Students' Spatial Ability at SMP It Ikhwanul Muslimin

Abstract

This study aims to: 1) develop an interactive book learning media based on a realistic mathematical approach to the valid, practical, and effective flat-sided geometry material (cubes and blocks) so as to improve students' mathematical spatial abilities; 2) improve students' mathematical spatial abilities by using interactive book media based on a realistic mathematical approach to the material of flat side shapes (cubes and blocks). This research is a development research. The development model used in this study is the ADDIE model with 15 students in class VIII-1 and 15 students in class VIII-2 at SMP IT Ikhwanul Muslimin as the research subject. The validity of the learning media developed was reviewed from the analysis of the results of the validity of the learning media by the validators with a total average value of 3.73 ("Valid" category). Meanwhile, the practicality of learning media is seen from the observation score of the implementation of learning in the second trial, which is 3.73 (category "Well Implemented"). The effectiveness of learning media in terms of four aspects, namely classical completeness, student activity observation scores, and student responses. The classical mastery of the students' mathematical spatial ability in the second trial was 86.67% (13 students). The average percentage of students' achievement in the ideal time of activity in the second trial for three meetings was 24.07%, 28.70%, 26.39%, 11.11%, 6.48%, and 3.24%. The average student response in the second trial was 3.74 (category "Interested").

Keywords:Interactive Digital Book, Realistic Mathematics Approach, Spatial Ability, Development of Mathematics Learning Media, Cubes and Blocks.

DOI: 10.7176/JEP/12-21-02

Publication date:July 31^st 2021