THE DEVELOPMENT OF LEARNING ACTIVITIES BASED ON POLYA’S PROBLEM-SOLVING PROCESS COMBINED WITH BAR MODEL DRAWING TO ENHANCE MATHEMATICAL ABILITY AND ACHIEVEMENT IN ADDITION AND SUBTRACTION OF NUMBERS GREATER THAN 100,000 AMONG GRADE 4 STUDENTS

Abstract

This research aimed to: 1) To compare the problem-solving ability in mathematics on addition and subtraction of numbers greater than 100,000 of Grade

4 students after participating in learning activities based on Polya’s problem-solving process combined with bar model drawing with the criterion of 70 percent; 2) To compare the mathematics learning achievement in addition and subtraction of numbers greater than 100,000 of Grade 4 students after participating in learning activities based on Polya’s problem-solving process combined with bar model drawing with the criterion of 70 percent; and 3) To study the satisfaction of Grade 4 students towards the implementation of learning activities based on Polya’s problem-solving process combined with bar model drawing. The target group of this study consisted of 13 Grade 4 students from Ban Nong Pha-Om School, Samdet District, Kalasin Province. The research instruments included a lesson plan, a problem-solving ability test, a mathematics learning achievement test, and a satisfaction questionnaire. The statistics used for data analysis were percentage, mean, and standard deviation. The results of the study revealed that; 1. Students had problem-solving ability after participating in the learning activities, with a mean score of 43.31 points, which is equivalent to 86.62%, exceeding the criterion of 70%; 2. Students had mathematics learning achievement after participating in the learning activities, with a mean score of 23.31 points, which is equivalent to 77.69%, exceeding the criterion of 70%; and 3. The students’ satisfaction towards Polya’s problem-solving process combined with bar model drawing after participating in the learning activities was overall at a high level