Abstract:
Mathematical problem-solving ability is the ability possessed by students in solving mathematical problems
through creative and critical thinking processes that include identification, analysis, and finding the right solution
so that problems can be solved effectively. Based on observations, students face challenges in developing
mathematical problem-solving abilities, especially students who have low-level thinking skills. 3-dimensional
monopoly media is considered to be able to improve the ability to solve mathematical problems through game
forms. The purpose of this study was to determine the effect of the application of 3-dimensional monopoly media
on the mathematical problem-solving abilities of fifth-grade students at Sanggar Bimbingan Kampung Baru
Malaysia. This study uses a quantitative approach with a Pre-Experiment type using a One Group Pretest-Posttest
research design. The sample used in this study consisted of 8 fifth-grade students at Sanggar Bimbingan
Kampung Baru Malaysia. Data collection methods include observation, testing, and documentation. The
instrument used is a multiple-choice test. Data analysis was carried out using descriptive analysis methods and
hypothesis testing through paired sample t-tests. The results of the pretest showed an average student score of
61.25, while the posttest showed an average student score of 84.37. The results of the hypothesis test analysis
showed a significant value of 0.001 <0.05 (two-tailed), indicating that the hypothesis was accepted. The use of
3-dimensional monopoly learning media has an effect on the mathematical problem-solving abilities of fifth grade students at the Kampung Baru Malaysia Guidance Studio.