“认知冲突”一词常常被老师提起,因为它既能激起学生的思维振荡,又会催生乐于学习的积极情感。小学数学课堂教学中应充分利用教材中出现的矛盾因素以及学生本身的认知特点来设置问题情境。通过《能被3整除的数的特征》的课堂教学,对小学数学中的“认知冲突”进行了研究。 “Cognitive conflict ” is often mentioned by the teacher, because it can not only stimulate students’ thinking, but also promote a positive learning-positive emotion. Primary mathematics classroom teaching should make full use of the contradictory factors appearing in the textbooks as well as the cognitive characteristics of the students themselves to set the problem situation. A study of “cognitive conflicts” in elementary mathematics was conducted through classroom teaching of “features that can be divisible by 3”.