The purposes to this research were: 1) to find the efficiency of Mathematics problem solving skills training on addition, substraction, multiplication and division, 2) to compare students’ learning achievement before and after using the mathematics problem solving skills training, and 3) to study the students’ attitude towards Mathematics after using the mathematics problem solving skills training. The sample groups were students from Prathomsuka 2 at Areewattana school in the second semester of academic year 2019 using purposive sampling and simple random sampling. They were divided into four groups: Each group consisted of three, nine, thirty and thirty - five students respectively. The research instruments were: 1) suitability questionnaire, 2) achievement test with a reliability of 0.63, and 3) students’ attitude questionnaire with a reliability of 0.88. The statistics comprised percentage, mean, standard deviation, the efficiency criterion (E1/E2) and t - test.
แบบฝึกทักษะ, ทักษะการแก้ปัญหาคณิตศาสตร์
Skills training, Mathematics problem solving skill