Understand Mathematical Concepts; Model Personalized System of Instruction

This research aims to knowing the improvement of understanding mathematical concepts ability using a personalized system of instruction model and knowing students’ understanding of mathematical concepts using a personalized system of instruction model is better than understanding students’ mathematical concepts using ordinary learning. The research design used is an experimental type of quantitative research and uses a pre-test post-test control group design. The population in this study were grade VIII students of SMP Negeri 07 Kerinci for the 2020-2021.