Abstract

This action research aims to develop the ability to solve mathematical problems, particularly in polygons, through open-approach learning management for sixth-grade students, with the goal of achieving an average score exceeding 70% of the total possible score. The target group consisted of eight students in the second semester of the academic year 2023. Data collection tools included lesson plans, mathematics problem-solving ability tests, student behavior observation forms, and student journal logs. The data were analyzed using statistical methods, including percentages, means, and standard deviations. The findings showed that an open approach to learning management can effectively enhance mathematical problem-solving skills. Furthermore, it was observed that the students demonstrated various problem-solving approaches, actively engaged in group and inter-group learning exchanges, displayed confidence in problem-solving, and improved their mathematical problem-solving abilities.

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