The purpose of this research is to know the difference of mathematical representation skill. the result of science learning and its influence on problem-based learning and discovery learning model. The population of this study was 16 students of PGSD FKIP University of Lampung. Among 534 students. https://safeersappliancers.shop/product-category/aeg-fss62800p-built-in-comfort-lift-dishwasher-white-wh/