1. Determine the goal and content of lesson preparation: The goal of collective lesson preparation is to ensure that teachers have the same understanding of the teaching content and jointly formulate teaching activities and resources. Ensure that the content of lesson preparation is closely combined with the requirements of the new curriculum standard, and make adjustments according to the learning characteristics and needs of students.

2. Division of labor and cooperation: Teachers can divide their work according to their own expertise and interests, and be responsible for preparing lessons in parts. For example, one teacher can be responsible for sorting out teaching contents, and another teacher can be responsible for collecting and preparing teaching resources.

3. Discuss teaching strategies and methods: Teachers can jointly determine teaching strategies and methods through discussion, sharing and communication. We can combine students' learning situation and the characteristics of teaching materials, try different teaching methods and put forward specific implementation plans.

4. Mutual evaluation and reflection: After preparing lessons, teachers can evaluate and reflect on each other and share problems and experiences in the teaching process. This will help to improve the professional quality and teaching level of teachers and promote the effect of collective lesson preparation.

5. Making lesson plans and teaching resources: The result of collective lesson preparation should be making lesson plans and preparing teaching resources. Teachers can jointly formulate teaching objectives, tasks and evaluation criteria, and prepare relevant teaching materials, teaching AIDS and activity designs.

It should be noted that collective lesson preparation is not simply combining individual lesson preparation, but improving teaching level and teaching effect through cooperation and interaction. At the same time, collective lesson preparation also requires teachers to have good communication and cooperation skills.