实践课的上课形式是多种多样的，采用哪一种形式上课要根据实践课的内容情况而定。本文探讨的是调查与上室内交流课相结合的类型。这一类型的数学实践课主要采用先让学生结合家庭、周围环境进行调查或实际测量，在调查或实际测量的基础上进行整理，提出数学问题和解答数学问题 Practical lessons in a variety of forms, the use of which form should be based on the content of practice class. This article explores the type of combination of investigation and exchange in the classroom. This type of math practice mainly uses students to combine the family, the surrounding environment to conduct an investigation or actual measurement, based on the survey or actual measurement to organize, put forward mathematical problems and answer mathematical problems