Hello, dear, the difference is as follows: 1. Organize the study of advanced educational concepts, sort out the elementary/junior high school mathematics knowledge system, and construct the knowledge map and curriculum system based on the project objectives; 2. Formulate the teaching mechanism and master plan of primary/junior high school mathematics teaching and research, organize its implementation, coordinate internal and external resources, and ensure the realization of the project objectives; 3. Participate in the establishment of teaching and scientific research standards and process systems, check the process and quality, and be responsible for the quality and progress; 4. Overall control the quality of teaching products, track the operation of teaching products, establish an effective evaluation system, evaluate the quality according to product demand and user feedback, and put forward an optimization scheme; 5. Establish a mechanism for continuous iterative innovation of elementary/early mathematics products.