The study investigates the effect of the Problem-Based Learning Reading-Questioning-Answering (PBLRQA) model on the metacognitive awareness of pre-service teachers. Findings indicate that while PBLRQA shows improvement in metacognitive awareness compared to the traditional Problem-Based Learning (PBL) model, the differences are not statistically significant. This suggests both models are effective for enhancing metacognitive skills in science learning, emphasizing the importance of metacognition in educational outcomes.