The development of mathematics learning activities based on Constructivist Learning in four operations on decimals (addition, subtraction, multiplication and division) for Primary 6

Abstract

The objectives of this research are 1) to develop mathematics learning activities based on the concept of constructivist theory on addition, subtraction, multiplication and division of decimals. Grade 6 and 2) to develop academic achievement in the mathematics subject group on addition, subtraction, multiplication, and division of decimals. Grade 6 requires students to have an average academic achievement of 70 percent and not less than 70 percent of students have an academic achievement of 70 percent or more. This research is action research. The target group is primary school students, studying in Year 6 at Ban Pa Ngio Nong Hee School, Ban Phai District, Khon Kaen Province. Khon Kaen Primary Educational Service Area Office, Area 2, Semester 1, Academic Year 2017, number of 28 people. The tools used in the research include a mathematics learning plan based on constructivist theory, a learning activity observation form, a student learning behavior observation form, a learning management results recording form, and Academic achievement test form. Data analysis includes percentages, averages, and essay summaries. The results of the study found that 1) Developing mathematics learning activities according to constructivist theory regarding addition, subtraction, multiplication, and division of decimals. Grade 6 has steps for organizing learning activities as follows: (1) Introduction to the lesson: This is the preparation step. Create interest in students by informing learning objectives and reviewing previous knowledge. To connect the new knowledge that will be learned next, (2) Teaching step: organizing mathematics learning activities according to the concept of constructivist theory on addition, subtraction, multiplication and division of decimals. Grade 6 has steps for organizing learning activities, (3) Summary step, which is where learners work together to summarize concepts; (4) Skill training and application step: In this step, learners will model Practice skills created by teachers to develop skills. and be able to apply knowledge to various situations skillfully and (5) Evaluation step: This is the step of evaluating students' knowledge and understanding from skill exercises, participation in learning activities. and student work. 2) Students had an average academic achievement score of 91.53 percent and 28 students passed the criteria, accounting for 100 percent of the total number of students.