Brief introduction of problem-solving dictionary: junior high school mathematics problem-solving dictionary: students' model: the series of problem-solving notes are based on the basic knowledge and skills of the subject, and the knowledge system is clear. In the screening of topics, in addition to the college entrance examination questions, we also selected the unit, monthly and joint examination questions of all grades, ranking the topics from easy to difficult, focusing on the "academic level test" and the college entrance examination. In this way, students of each grade can "get what they need".

Teachers' questions; The series of problem-solving textbooks not only provide students with a model for learning and mastering standardized problem-solving methods, but also provide teachers with examples needed for teaching and evaluation. Teachers' in-depth study of new courses and new questions will be of great benefit to the high-end combing of new situations and new ideas. Therefore, the problem-solving dictionary is an important set of reference materials to guide problem-solving.

Proposer question bank; The series of problem-solving textbooks have created a considerable number of new problems, strictly screened and analyzed the classic problems of various provinces and cities in recent years, deconstructed the design level of the proposer's "ability and conception", and even traced back to the evaluation dimension of curriculum standards. Therefore, the series is also a necessary question bank for teachers' process evaluation, summative evaluation and college entrance examination proposition.