Development of Learning Activities Concrete-Pictorial-Abstract (CPA) That Promotes Mathematical Concepts Concerning Solving Problems in Addition, Subtraction, Multiplication, and Division for Students In 3 Grade Students
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The objectives of this research are: 1) To develop learning activities based on the Concrete-Pictorial-Abstract (CPA) concept that promotes mathematical concepts on problem solving, addition, subtraction, multiplication, and division for grade 3 primary school students to be effective according to the 80/80 criteria 2) To compare the mathematical concepts of solving problems of addition, subtraction, multiplication and division of 3 grade students according to the Concrete-Pictorial-Abstract (CPA) concept with the 75 percent criterion and 3) To study the satisfaction of grade 3 primary school students towards learning mathematics on solving problems involving addition, subtraction, multiplication and division. The sample group was 10 third grade students in the first semester of the academic year 2024 at Wat Devarajkunchorn School, selected by purposive simple. The research instruments were 4 learning plans, a 10-item achievement test with a reliability of 0.73, and a satisfaction questionnaire. The statistics used were mean (M), standard deviation (SD), and one sample t-test. The research results found that 1) the mathematics learning activity development plan had an efficiency of 82.26/81.50, which met the specified criteria. 2) The post-study mathematics concept test score was 81.50 percent, which was higher than the specified criteria with statistical significance at the .05 level. 3) Overall satisfaction was at the highest level with an average value (M=4.75, SD=0.48).
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