A Study Of Reasoning Ability Of Grade 11 Student By Using Critical Thinking Instruction With Kwdl Technique

Abstract

The objectives of this research were to : 1) compare the mathematics Reasoning Ability before and after using Critical Thinking Instruction with KWDL. 2) Compare the mathematics Reasoning Ability of grade 11 students after using Critical Thinking Instruction with KWDL Technique with the criterion of 60 percent of the full marks. The sample used in this research consisted of 28 grade 11 students studying in the first semester of the academic year 2020 at Banmo Phatthananukul school under Secondary Educational Service Area Office 4. They were selected using multi-stage random sampling. The research instruments were 8 lesson plans for the Using Critical Thinking Instruction with KWDL Technique at the highest appropriate level, a Reasoning exponential ability test on with a reliability of 0.79. The statistics used for the data analysis were percentage , mean , standard deviation and t - test

               The research findings were as follows 1) The mathematics Reasoning Abilities of the grade 11 students after using the Critical Thinking Instruction with KWDL Technique were higher than before using the Critical Thinking Instruction with KWDL Technique at the 0.05 level of statistical significance. 2) The mathematics Reasoning Abilities of the grade 11 students after using Critical Thinking Instruction with KWDL Technique were higher than the criterion of 60 percent of the full marks at the 0.05 level of statistical significance. ( = 15.32 from total 20 scores and S.D. = 2.583)