(1) Carefully determine the classroom teaching objectives. Before preparing lessons, teachers should carefully read textbooks and teachers' books, make clear the three-dimensional objectives of their teaching content and the characteristics of textbook compilation, and formulate practical classroom teaching objectives in combination with students' reality. The proposed teaching objectives should be concrete and operable. If the goal is too high or too low, it is easy to make students lose interest, but they should be in the "nearest development area" of students, that is, "they can jump and get fruits".

(2) Instructional design should pay attention to students' learning process. Preparing lessons is the premise of a good class, so what is the preparation for preparing lessons? The important guiding ideology of preparing lessons for teachers is not to prepare teachers for how to "teach", but to prepare students for how to "learn". Teachers should pay attention to students' learning foundation and learning state and carefully design students' learning process. It is necessary to fully presuppose which part of the content is difficult for students to learn, how to implement it, which part of the content is easy for students to have objections or unique opinions, and how to deal with it.