Development of Mathematics Textbooks on Ratio and Percentage for Mattayomseuksa 2 Students

Abstract

This research’s purposes were 1) to develop mathematics textbooks on Ratio and Percentage for Mattayomseuksa 2 level to reach 75/75 efficiency standard level, 2) to compare learning achievements between before and after using the developed textbooks, and 3) to study students’ satisfaction towards using the developed textbooks on ratio and percentage for mattayomseuksa 2 level, Srisemawittayaserm School.  The sample group for this research was 30 class-1 students of mattayomseuksa 2 level from Srisemawittayaserm School, which was selected using purposive sampling method.

The tools used for this research were 1) 7 sets of mathematics textbooks, 2) learning achievement evaluation tests on ratio and percentage for mattayomseuksa 2 level, and 3) satisfaction questionnaires on learning management using the developed textbooks on ratio and percentage.  Statistics used to analyze the collect data were mean, standard deviation, and t-test.

The results of the research were 1) the developed mathematics textbooks on ratio and percentage were efficient at 80.69/80.39 which was higher than the set standard, 2) the learning achievements of before and after using the developed mathematics textbooks on ratio and percentage were slightly different with a statistics significance level of .05 the latter’s average score was higher than the first’s score, and 3) the class-1 students of mattayomseuksa 2 level were satisfied with the learning management using the developed mathematics textbooks on ratio and percentage at high levels.