INCREASED UNDERSTANDING OF MATHEMATICAL CONCEPTS AND MOTIVATION WITH A PROBLEM POSING APPROACH ON CLASS VIII MTs NEGERI 2 RANTAUPRAPAT

This classroom action research is motivated by the low learning motivation and understanding mathematical concepts of student. This study aims to improve the ability to understand mathematical concepts and motivation by using the problem posing approach. The research subjects were 32 students of class VIII-A MTs Negeri 2 Rantauprapat. The research was conducted in 3 cycles where each cycle consisted of problem, planning, implementation, observation, data analysis, and reflection stages. Data collection techniques used in this study included tests and observations. Problem posing approach can improve understanding of mathematical concepts and motivation of class VIII-A students of MTs Negeri2 Rantauprapat. This improvement was shown by the average motivation in pre-cycle (55.98%), cycle I (67.78%), cycle II (75.48%), cycle III (86.30%), and the average understanding of mathematical
concepts in pre-cycle (24.58%), cycle I (41.67%), cycle II (69.01%), cycle III (90.89%). Because it has reached the motivational completeness criteria, namely the average student motivation reaches ≥ 75% and the completeness criteria for understanding mathematical concepts, namely 85% of students get scores ≥ KKM (75), then the research is said to be successful.