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The purposes of this research were (1) to design an instructional activity package on linear programming using a graphic calculator for Mathayomsuksa Five students with 80/80 efficiency criteria, (2) to study students’ achievement in linear programming after they learned the topic via the created package and (3) to evaluate the students’ satisfaction toward the contents of linear programming and instructional activities with using a graphic calculator in the designed package.
The study was conducted during the second semester of the 2017 academic year with athyomsuksa Five students at Watpapradoo School in Rayong. Through a method of the cluster random sampling, forty participants were in the experimental group. The students were taught for thirteen periods with the created package by the researher. At the end of the instructional package, a designed test and uestionnaire were given to the participants to assess the students’ acheivement in linear programming and evalute the students’ satisfaction toward the contents and activities designed with using a graphic calculator in the package, respectively.
The findings of the study revealed that the instructional activity package on linear programming using a graphic calculator for Mathayomsuksa Five Students efficiency E1/E2 was 77.90/78.20, which met 80/80 set criterion. The number of students who scored since 60% on the test was more than 70% of the total number of students. A Z-test was analyzed at .05 level of significance. And the subjects’ satisfaction toward the contents and activities in the instructional packages was at the “high” level.
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