In view of the wide application of class evaluation in school-based teaching and research at all levels, teaching and research activities, school management and teacher assessment, in order to give full play to the function of class evaluation, this book invites outstanding teachers with high level of class evaluation and certain research in provincial and municipal activities, and collects excellent cases of class evaluation in advanced units of school-based teaching and research in some provinces and cities. Guided by modern educational ideas and concepts, these comments have made a profound theoretical analysis of teaching materials and teaching methods, which have a certain guiding role for teachers to learn theories, study teaching methods, explore ways to improve classroom teaching quality and participate in various evaluations, so that mathematics teachers can understand and inspire after reading them, and make school-based teaching and research more solid and effective.