Development of Mathematics Learning Device Based on Cooperative Model Type of Think Talk Write that Supported by Edmodo for Developing the Mathematics Problem Solving Skills

Abstract

This research aims to gather the mathematics learning device based on cooperative model type of think talk write that supported by Edmodo that has a validity, practical, and effective as an effort to improve student problem solving skills on mathematics. This research classified as a type of design research by following the design research procedure by Plomp that includes preliminary phase, prototype phase, and assessment phase. The subject of this research are students of grade X of Senior High School Number 2 Negara, they are 20 students of grade X MIPA 4 for limited tests, 36 students of grade X MIPA 2 for field test I, and 36 students of grade X MIPA 1 for field test II. Learning device that developed are students’ books and teachers’ books that supported by Edmodo. Students book is a mathematics book that intended by the researcher is a mathematics book that discus the trigonometry for grade X. Results of the research shows that learning device that developed fulfilled the validity criteria, practically criteria, and effectivity criteria that expected. Characteristics on the students’ book and teacher’s book are interestingly designed and adapted to the syntax of cooperative model type of think talk write that supported by Edmodo.