It is more difficult. Highlight optimization includes basic questions and improvement questions. Basic questions are suitable for students with average grades, and can be used to consolidate the foundation, check and fill gaps, and review knowledge points. The topic is not difficult, and many teachers and students gave good feedback. The highlight is the educational measurement tool based on accurate mathematical model. Highlight activation is a kind of test paper that allows students to understand the course content more deeply. Its practice is that in the course, the teacher will put forward some important concepts, and then let the students discuss them in class in order to better understand these concepts.