Development of Assessment Guidelines Integrated with Teaching Using Problem-based Methods to Develop Mathematical Problem-Solving Skills in a Unit of Learning About the Surface Area and Volume of the Pyramid, Cone and Sphere of The Grade 3 Students of Secondary School

Abstract

          This research study aimed to develop the integrated learning assessment approaches with mathematical problem-solving skills in the topic of the surface area and volume of the pyramid, cones and spheres of The Grade 3 Students of Secondary School and study to the quality Assessment Guidelines Integrated with Teaching using Problem-based Methods to Develop Mathematical Problem-solving Skills in a Unit of Learning about the Surface Area and Volume of the Pyramid, Cone and Sphere of The Grade 3 Students of Secondary School.        The samples in this research were one class of the nineth-grade, consisting of thirty-five students, Watsuthiwararam School, Sathorn District, Bangkok, in the first semester of the academic year 2023. The research tools consisted of 1) lessons plans 2) mathematical worksheets with exercises, and 3) the tests focusing on mathematical problem-solving skills (The test comprised pre-test and post-test.) The data were analyzed by using frequency, percentage, and mean. The relative gain scores and the content analysis are as follows: 1. Assessment guidelines using the problem-based approach consists of 4 steps: 1) designing the assessment 2) creating and developing tools, 3) evaluating mathematical problem-solving skills, 4) reporting and implementing assessment results. 2. The results of mathematics problem-solving skills are as follows: students had increasing average scores after implementing the assessment guideline, and students passed the assessment criteria for mathematical problem-solving skills in all components of problem-solving skills in every mathematics lesson plans. 3. The quality of learning assessment guidelines for developing mathematical problem-solving skills on subjects the surface area and volume of the pyramid cones and spheres of the nineth-grade students reveled that the assessment guidelines were useful for Teachers in terms of improving and developing learning activities to increase the mathematical problem-solving skills in students and the providing feedback could be beneficial for student as a guideline to develop mathematical problem-solving skills in themselves.