学生是教学的对象,教师要把学生的认知基础作为教学的基础,充分了解学生后进行教学的预设,最后通过教学活动的开展,实现完美生成,收获丰收的教学成果。 Students are the objects of teaching. Teachers should regard students’ cognitive foundation as the basis of teaching, fully understand the preconditions of teaching after students, and finally realize the teaching and learning activities so as to achieve perfect results and harvest the teaching results.