课堂教学中的理答环节是教师获得信息反馈的主要渠道.本文从“小学数学课堂理答的常见形式”和“小学数学课堂理答的有效策略”两方面进行了详细论述.从而一方面可以及时理清教学线索,调整教学流程,修正教学内容;另一方面可以关注教学细节,进行针对性的指导、点拨和启智,确保教学的高效顺畅,提高课堂教学的有效性. The reasoning and answering links in classroom teaching are the main channels for teachers to obtain information feedback.This paper elaborates in detail from two aspects: common forms of primary school mathematics class lectures and effective strategies of primary school mathematics class lectures. Therefore, on the one hand, the teaching clues can be sorted out in a timely manner, the teaching process can be adjusted, and the teaching contents can be amended; on the other hand, the teaching details can be focused on, and targeted guidance, instruction and enlightenment can be made to ensure efficient and smooth teaching and improve the effectiveness of classroom teaching.