Development of Mathematics Learning Design through Problem Posing Approach for Developing Mathematical Reasoning Ability

Abstract

This study aims to produce a mathematical learning design through a problem-posing approach that improves student's mathematical reasoning abilities with valid, practical, and effective criteria. This type of research is research and development. The subject of this development trial is students of grade VIII-9 of SMP Negeri 1 Bau-Bau. The devices and instruments that have been compiled are validated, and the validation results show that they meet the validity requirements. The practicality of the design is shown by the average percentage of achievement from the observation of teacher activities, which meets the practicality requirements. Learning design meets the requirements of effectiveness, namely the average achievement of student activities with good criteria, reasoning abilities of high category students with an average of 78,3, and the average student response to learning and worksheets is positive. Based on the result, it can be concluded that the learning design of mathematic through the problem-posing approach to improving student's mathematical reasoning ability were valid, practice, and effective.