1, according to the query of the public comment website, the teaching materials of the supplementary books have been completely solved: the teaching materials are Venus series, with comprehensive contents, detailed explanations, easy to understand and a small number of typical questions. In the process of learning, you can do exercises to improve students' grades quickly, so you can buy teaching AIDS and solve them with all your strength.
2. Textbook help: Textbook help is also a good supplementary book, with detailed content and easy to understand. In the seventh grade, both supplementary books can be selected.