THE RESULTS OF LEARNING MANAGEMENT THROUGH GUIDED DISCOVERY METHOD ON APPLICATION OF TRIGONOMETRY TO ENHANCE MATHEMATICAL THINKING FOR STUDENTS IN MATTAYOM 4
Mathematical thinking is one of the important skills that support students in Mathematics self-study, and improve problem solving skills for reasonableness. This research aimed to study the results of learning management through guided discovery method for Mattayom 4 students’ mathematical thinking in application of trigonometry. The research participants were 24 students in Princess Chulabhorn Science High School Phitsanulok. The instruments used in this classroom action research consisted of guided discovery lesson plans, worksheets, and mathematical thinking test. The data were analyzed using content analysis and triangulation. The results of this research showed students’ mathematical thinking developed after using guided discovery learning which consisted of three skills as follows: 1) Problem solving skill helped students to evaluate problems, make decisions, determine conditions of problem, identify the problem solving method, and correctly provide the answers 2) Reasonable skill, students can recognize knowledge to identify the problems and clearly provide reasonable answers 3) Mental representation skill, students can use texts, symbols or variables, and figures to understand problems, resolve problems, analyze and conclude answers.
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