Effects of Learning Management by Using Heuristics Problem Solving ApproachAffecting Achievement and Retention in Mathematics Learning on Linear Equation System with Two Variables of Mathayomsuksa 3 Students

Abstract

The purposes of this research were (1) to compare the mathematics learning achievement on linear equation systems with two variables of mathayomsuksa 3 students before and after studying by using heuristic problem solving (2) to compare the mathematics learning achievement on linear equation systems with two variables of mathayomsuksa 3 students with criterion 60% (3) to study the retention in mathematics learning on linear equation systems with two variables of mathayomsuksa 3 students after studying by using heuristic problem solving and (4) to study satisfaction toward the learning management by using heuristics problem solving on linear equation systems with two variables of mathayomsuksa 3 students. The sample consisted of 33 students who were studying in the mathayomsuksa 3 students of Watsuthiwararam school in the second semester of 2022 academic year. The samples were selected by simple random sampling. The research instruments consisted of (1) 8 the lesson plans using heuristics problem solving on linear equation systems with two variables. (2) the achievement test on linear equation systems with two variables which are 15 items and it is found that the difficulty (p) was from 0.57 to 0.76, the discrimination (r) was from 0.21 to 0.58 and the reliability of test was totally 0.90 and (3) the satisfaction questionnaire toward the mathematics learning by using heuristics problem solving on linear equation systems with two variables which are 15 items. The data was analyzed by mean (), percentage (P), standard deviation (S) and t-test.

The research findings revealed that:
1. The mathematics learning achievements on linear equation systems with two variables after studying by using heuristic problem solving was higher than before, at .05 level of significance.
2. The mathematics learning achievements on linear equation systems with two variables after studying by using heuristic problem solving was higher than the criterion of 60%, at .05 level of significance.
3. The mathayomsuksa 3 students have the retention in learning mathematics on linear equation systems with two variables after studying using heuristic problem solving
4. The satisfaction toward the learning management by using heuristics problem solving on linear systems with two variables of mathayomsuksa 3 students was in the highest level.