Development of Mathematical Connection Ability through the 4MAT Learning Model Integrated with GeoGebra on Systems of Linear Equations in Two Variables among Grade 9 Students
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Abstract
This research aimed to: (1) develop lesson plans using the 4MAT instructional model integrated with GeoGebra; (2) compare students’ learning achievement and mathematical connection ability on the topic of systems of linear equations in two variables with predetermined criteria; and (3) examine students’ satisfaction with the 4MAT–GeoGebra instructional approach. The sample consisted of 26 Grade 9 students from Khuanchangwittayakarn School, selected through cluster random sampling. Research instruments included 4MAT–GeoGebra lesson plans, a learning achievement test, a mathematical connection ability test, and a satisfaction questionnaire. Data were analyzed using the mean, standard deviation, the E1/E2 efficiency index, and hypothesis testing via Hotelling’s T² test. The results indicated that the developed lesson plans achieved an efficiency of 82.11/76.67, exceeding the established criterion. Students’ mathematical connection ability was significantly higher than the criterion at the .05 level, and students reported the highest level of satisfaction with the developed instructional approach.
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