波利亚在《怎样解题》中指出,一个老师“如果他用和学生的知识相称的题目来激起他们的好奇心,并用一些激励性的问题去帮助他们解答题目,那么他就能培养学生对独立思考的兴趣,并教给他们某些方法”。所以,教师在组织教学时,要进行合理预设,预设越自然越接近学生已有认知水平,就越有可能激发学生的兴趣,使 Polia pointed out in “How to Solve Problems,” a teacher “If he stimulates their curiosity with topics that are commensurate with the students’ knowledge, and with some motivational questions to help them answer the questions, then he can Develop students’ interest in independent thinking and teach them some ways. ” Therefore, the teacher in the organization of teaching, to make a reasonable preset, the default is more natural and closer to the cognitive level of students already, the more likely to stimulate student interest so that