A STUDY OF MATHEMATICAL LEARNING ACHIEVEMENT AND MATHEMATICAL PROBLEM SOLVING ABILITY ON THE FUNDAMENTAL COUNTING PRINCIPLE FOR MATTHAYOMSUKSA V STUDENTS BY USING OPEN APPROACH TOGETHER WITH THE HIGHER ORDER THINKING QUESTIONS

Abstract

The purposes of this study were: to compare the mathematical achievement on the fundamental and to compare the mathematical problem-solving ability on the fundamental counting principle for Matthayomsuksa 5 students by using open approach and the higher order thinking questions with 70 percent criteria.The participants were twenty-nine students who studied in Matthayomsuksa 5/13 at Suratpittaya School and were selected by applying cluster random sampling. The instruments were (1) mathematics lesson plans which had satisfying scores 4.84 - 5.00 ; (2 ) the mathematical problem-solving ability test which had the item-objective congruence Index (IOC) between 0.67-1.00, the difficult (p) of test between 0.44 – 0.60 , the discrimination (r) of test between 0.35 – 0.49 and the reliability of all the item 0.83; (3) the learning achievement test, item-objective congruence index (IOC) of test between 0.67-1.00, the difficult (p) between 0.30 – 0.70, the discrimination (B) between 0.20 – 0.80 and the reliability of all the item 0.83. The statistics are used for analyzing the data. It consists of percentage, mean, and standard deviation. Moreover, to examine the hypothesis by using a t-test for One Sample. The results of the study were as follows: achievement on the fundamental counting principle and mathematical problem-solving ability for Matthayomsuksa 5 students by using open approach and the higher order thinking questions accounted for 78.62 percent and 79.66 percent at over 70 percent criteria at 0.05 level of significance.