1, with clear teaching objectives, can embody advanced teaching concepts, take students' development as the foundation, improve students' understanding, and meet the curriculum standards.

2. Accurately impart knowledge, pay attention to developing students' intelligence, teach students thinking methods in teaching, and cultivate and develop students' thinking ability.

3. It can better play the leading role of teachers and the main role of students, face all students and pay attention to teaching students in accordance with their aptitude.