THE RESULT OF USING MATHEMATICS ACTIVITIES BY CONSTRUCTIVISM THEORY ON SURFACE AREA AND VOLUME SUBJECT FOR MATTHAYOMSUKSA 3 STUDENTS OF DEMONSTRATION RAMKHAMHEANG UNIVERSITY SCHOOL ผลการจัดกิจกรรมการเรียนรู้คณิตศาสตร์ เรื่อง พื้นที่ผิวและปริมาตร ตามทฤษฎีคอนสตรัคติวิซึม ชั้นมัธยมศึกษาปีที่ 3 โรงเรียนสาธิตมหาวิทยาลัยรามคำแหง

Abstract

This research is an experimental based research aimed to study the results of mathematics learning activities based on constructivism theories on surface area and volume. The samples consisted of 42 Mathayomsuksa three students at Ramkhamhaeng University Demonstration School. Using the cluster random sampling method. Research instruments consisted of the following: 1) lesson plans for mathematics learning activities based on constructivism theory on surface area and volume, 2) a four-choice learning achievement test, and 3) a form utilized for measuring student satisfaction with the instruction involving the mathematics learning activities based on constructivism theory. Using a technique of descriptive statistics, via, percentage, the researcher determined the efficiency level of instruction and study using the aforementioned learning activities during the experimental study and after its completion. Employing a technique of inferential statistics, the researcher compared differences between learning achievement prior to the commencement of the experimental study and after its completion through applications of the dependent samples t-test method. Findings are as follows; the instruction activities based on constructivism theory showed an efficiency level of 88.21/80.63, the mathematics academic achievement levels of the students after the completion of the experimental study was higher than prior to its commencement at the statistically significant level of .05, and finally the satisfaction with the instruction learning activities based on constructivism theory was also displayed at a high level.