In all fairness, "Huanggang Synchronous Training" and "Huanggang Small Champion Homework" are very good supplementary textbooks, which are carefully arranged by teachers with rich teaching experience on the basis of thoroughly understanding the textbooks and digging deep into the curriculum standards. But both of them have their own advantages: the former focuses on the implementation of basic knowledge, while the latter pays more attention to the cultivation of ability and the development of thinking while emphasizing the implementation of basic knowledge.