Model Development Project Based Learning to Improve Mathematical Reasoning and Motivation

Abstract

This study aimed to develop a model Project Based Learning in order to improve students' mathematical reasoning and motivation by meeting valid, practical, and effective criteria. The development model in this study used the ADDIE which consists of 5 stages, there are Analysis, Design, Development, Implementation, and Evaluation. The instruments used consisted of (1) validation sheets, (2) practicality questionnaires from teachers and students, (3) mathematical reasoning tests, and (4) motivation questionnaires. The quality of the validity of the guide books fulfilled valid. For the validity of the tests and the questionnaire met the criteria of moderate validation. The practicality quality of the model developed fulfills the practical. The effectiveness criteria can be seen from the increase in the results of tests of reasoning and motivation questionnaires with the percentage of classical completeness ≥ 75%. Data pre-test mathematical reasoning obtained a percentage score of 38.96% increased to 77.12% obtained from the data pos-test and the average data score post-test of 77.12 above the KKM (70) with classical completeness reached 87.50% ≥ 75%. The pre-test result of the student motivation obtained a percentage score of 54.78% ≤ 75% increased to 79.80% ≥ 75%.