การพฒนาบทเรยนออนไลนรปแบบปญหาเปนฐาน รวมกบการจดการเรยนการสอนแบบเกมมฟเคชน เพอสงเสรมทกษะการแกปญหา

This research aims to: 1) Develop an online problem-based learning lesson integrated with gamification to enhance problem-solving skills. 2) Assess the quality of the developed online lesson. 3) Evaluate the effectiveness of the developed online lesson. 4) Compare students' learning achievement before and after learning with the developed online lesson. 5) Compare the problem-solving skills of students who learned through the developed online lesson. 6) Assess students' satisfaction with the developed online lesson. The sample group in this study consists of 31 second-year vocational certificate students from classes 3 and 4 at Saraburi Technical College who are enrolled in the Computer Mathematics course. The sample was selected using a simple random sampling method. The research instruments include: The developed online learning module. A problem-solving skills assessment test. An academic achievement test. A student satisfaction questionnaire. The research findings revealed that: 1) The efficiency evaluation of the developed online lesson showed an efficiency value of 81.29/94.98, which exceeds the established criterion of 80/80. 2) The quality of the developed online lesson was approved by experts, with content experts rating it at a high level with an average value 4.21, standard deviation of 0.37 and technical experts rating it at the highest level with an average value 4.60, standard deviation of 0.34. 3) Students' problem-solving skills improved after learning with the developed online lesson. The post-test scores on problem-solving skills were significantly higher than the pre-test scores at a statistical significance level of .05. 5) The learning achievement of students before and after using the developed online lesson showed a significant improvement. The post-test scores were significantly higher than the pre-test scores at a statistical significance level of .05. 6) Students' satisfaction with the developed online lesson was at the highest level with an average value 4.86, standard deviation of 0.29)