DEVELOPMENT OF LEARNING ACHIEVEMENT AND PROBLEM SOLVING SKILLS IN MATHEMATICS OF 7th GRADE STUDENTS BY HERBART METHOD WITH DAPIC PROBLEM-SOLVING PROCESS

Abstract

          The purposes of this research were to: 1) compare the mathematical learning achievement in solving linear equation in one variable problems before and after learning using Herbart method with DAPIC process; 2) compare the mathematical learning achievement in solving linear equation in one variable problems after learning with the set criteria of 70%; 3) study the problem solving skills after learning using Herbart method and DAPIC process; and 4) study the 7^th grade students’ opinions on learning management using Herbart method with DAPIC process. The sample group was 45 students from a 7^th grade class enrolling in the second semester of academic year 2019 at Kannasootsuksalai School, Suphan Buri Province, derived by cluster random sampling. The research instruments were: 1) learning management plans based on Herbart method with DAPIC problem-solving process; 2) an achievement test on linear equation in one variable problems; 3) a problem solving test on linear equation in one variable problems; and 4) a questionnaire about learning using Herbart method with DAPIC problem-solving process.

          The results of the study were: 1) the mathematical learning achievement in solving linear equation in one variable problems after learning using Herbart method with DAPIC process was significantly higher than that of before with statistical significance at .05 level; 2) the learning achievement after learning using Herbart with DAPIC process was significantly higher than the criteria of 70% with statistical significance at .05 level; 3) the problem solving skills after learning using Herbart method with DAPIC process was at a good level; and 4) the student’s opinion on learning using Herbart method with DAPIC process was positively high.