The Development of Mobile Learning Integrated with Polya’s Problem-Solving Process to Enhance Learning Achievement in Business and Service Mathematics for Vocational Certificate Students

Abstract

The objectives of this research were 1) to develop mobile learning integrated with Polya’s problem-solving process on the topic of setting selling prices for Vocational Certificate students to achieve an efficiency of 80/80, and 2) to compare students' learning achievement in the Business and Service Mathematics course before and after learning through mobile learning integrated with Polya’s problem-solving process on the topic of setting selling prices. The sample group in this study consisted of 30 vocational certificate  students from Thonburi Commercial College, under the Office of the Vocational Education Commission, during the second semester of the 2024 academic year. The sample was selected by simple random sampling, using the classroom as the sampling unit. The research instruments consisted of 1) a mobile learning program integrated with Polya’s problem-solving process on the topic of setting selling prices in the Business and Service Mathematics course for Vocational Certificate  students, 2) three lesson plans for mathematics instruction using mobile learning integrated with Polya’s problem-solving process on the topic of setting selling prices, and, 3) a 20-item multiple-choice achievement test on the topic of setting selling prices in the Business and Service Mathematics course. The test had a difficulty index ranging from 0.21 to 0.64, a discrimination index ranging from 0.21 to 0.76, and a reliability coefficient of 0.68. The results showed that 1) the mobile learning integrated with Polya’s problem-solving process had an efficiency of E1/E2 = 83.69/83.85, and, the post-test learning achievement scores of the students were significantly higher than before learning at the .05 level.