This study investigated the effects of combining Mayer's model of problem solving with a four-stage constructivist model. 26 physics students were divided into an experimental group that received instruction using both models along with active learning techniques, and a control group that only received instruction based on Mayer's model. Students' attitudes towards problem solving and academic performance in physics were assessed before and after with surveys and tests. The results showed that students in the experimental group developed better attitudes and problem-solving skills compared to the control group. The combined approach of Mayer's model and constructivism had a significant positive impact on students' learning.