The Effect of STEM Activities Created with 5E Learning Model on Mathematics Problem-Solving Skills and Attitude towards Mathematics<sup></sup>

In this study STEM activities created with the 5E learning model were applied to 4th grade primary school students and the effects of these activities on the students' mathematics problem solving-skills and attitudes towards mathematics were examined. A quasi-experimental design with a pre-test-post-test control group was used in the study. The sample of the study was 42 students studying at a primary school in the Mamak district of Ankara in the 2022-2023 academic year. The appropriate sampling method was used in the study. The data of the study were collected with the Attitude Towards Mathematics Scale and the Problem-Solving Achievement Test developed by the researcher. Independent sample and dependent sample t- tests were used in the analysis of the data. According to the research results; It was determined that there was no statistically significant difference between the pre- test-posttest problem-solving success scores of the experimental group students, but the pre-test-posttest scores of the attitude towards mathematics were statistically significant in favor of the posttest. It was determined that there was no statistically significant difference between the attitude towards mathematics and problem-solving success posttest scores of the experimental and control groups. Suggestions were made in line with the research results.