1, homework is stratified, and learning has improved a lot. The concept is novel: each unit is equipped with 3 zones and 6 levels, and the class hours are expanded and evaluated, which is efficient. Difficult to match: the topic is close to the requirements of the textbook, from basic to comprehensive, and the ability is improved. Enrich questions: innovate a variety of questions to set questions, activate situations and stimulate interest. Exquisite design: full-color hand-drawn cartoon illustrations, improve the quality of books, love homework.

2. The middle point of the class is suitable for students with average grades. The content is simple and easy to learn, the students have learned a lot of knowledge, and the teacher is also very serious in teaching. The course in the middle of the class is not difficult, and the teacher fully understands it.