ผลการจัดการเรียนรู้โดยใช้ปัญหาเป็นฐาน ต่อความสามารถในการแก้ปัญหาและผลสัมฤทธิ์ทางการเรียนวิชาคณิตศาสตร์ของนักเรียนชั้นมัธยมศึกษาปีที่ 2

Abstract

The purposes of this research were to examine and compare the ability to solve mathematics problems and learning achievement of the students who learned through the problem-based learning management and the students who learned through the conventional learning management, to compare the effects after the implementation of the problem-based learning management with a criterion of 75 percent. The sample groups consisted of Mathayomsuksa 2 students, selected by cluster random sampling. The research instruments were the problem-based learning and conventional learning lesson plans, the ability to solve mathematics problems test with a reliability of 0.89, and the mathematics learning achievement test with a reliability of 0.90.  The data was analyzed by means, standard deviation, percentage, One-way MANCOVA and One-sample t-test.

            The results of the research showed that the students learning by using problem-based learning and the students learning by using conventional learning improved the ability to solve mathematics problems before the intervention at a mean score of 35.88 percent and 35.26 percent respectively, while the mean score after the intervention increased 80.07 percent and 70.06percent respectively. The students’ mean scores of mathematics learning achievement were 45.14 percent and 44.36 percent respectively, while the average scores increased by 80.36 percent and 68.63 percent respectively. When testing the differences between the groups, students who learned through problem-based learning management had higher ability of mathematics problems solving and mathematics learning achievement than students who learned through conventional learning management. The ability of math problems solving and mathematics learning achievement of students were above the threshold of 75 percent.