The Development of Write Geometric Proofs Abilities on Congruence for Mathayomsuksa 2 Students Using Proof Mapping Instructional Technique
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Abstract
The purposes of this research were 1) Compare the ability to write geometric proofs in Congruence for Grade 8th students using proof mapping instructional technique between before learning and after learning.
2) Compare the ability to write geometric proofs in Congruence for Grade 8th students using proof mapping instructional technique between after learning and 60 % criteria. A samples were 37 Grade 8th students in the 1st semester of 2019at Chokchaisamakkee school. The research tools included 10instructional plans using proof mapping instructional and ability to write geometric proofs test. The collected data were analyzed using the percentage, means, the standard deviation, and the t-test statistics. The study result showed that: 1) The ability to write geometric proofs in Congruence for Grade 8th students using proof mapping instructional technique after learning was statistically higher than before learning at the .05level. 2) The ability to write geometric proofs in Congruence for Grade 8th students using proof mapping instructional technique after learning was statistically higher than the 60 percent criteria at the .05 level
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References
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