The aim of this research was to explore the effect of a Technology-enhanced Metacognitive Learning Platform (TeMLP) on student's monitoring accuracy and understanding of electricity. An interactive TeMLP was prepared on the electricity unit covering the topics of static and current electricityfor 7th graders; the platform contained computer animations, science experiments, e-diaries, and metacognitive prompts. In this research, pre-test/post-test control group semi-experimental model was used. The Metacognition Scale and Essay Questions on Static and Current Electricity were used as data collection tools in this research. In addition, Essay Questions on the Learning Platform and the self-explanations of students in the learning platform database were also used in the experimental group. The pre-test and post-test comparisons regarding the Metacognition Scale for the group showed that the students in the experimental group had significantly higher post-test scores compared to control group students in terms of the control and monitoring subscales. The results of the essay questions on static and current electricity revealed an important difference between the groups favoring learning platform. The views of the students about the software support these results. The conclusions drawn by the research led to recommendations for researchers about the metacognitive prompts to be employed in technology-enhanced learning platforms.