1, set the teaching objectives, determine the teaching objectives according to the subject standards and syllabus, and clarify the knowledge points and ability requirements to be taught.
2. Divide the teaching units, and decompose the teaching objectives into several small teaching units, each of which contains one or more related knowledge points and skill requirements.
3. Design teaching activities, including teaching methods, teaching AIDS and evaluation methods of each teaching unit. We can combine students' actual situation and interest in learning, and adopt various teaching methods such as games, experiments and discussions to improve students' enthusiasm and interest in learning.
4. Make teaching materials according to the needs of teaching activities, such as courseware, PPT, pictures, experimental equipment, etc.
5, the implementation of teaching activities, according to the teaching unit list, pay attention to the teaching effect and students' feedback in the teaching process, and adjust the teaching strategies and methods in time.
Difficulties: How to determine the point M? Because the side lengths of the left right-angled triangle are 3, 4 and 5 respectivel