《数学课程标准》指出:数学教育要从以获取知识为首要目标转变为关注人的发展,创造一个有利于学生主动发展的教育环境,提供给学生充分发展的空间。由此,一种新的教学观念、教学模式——开放性教学应运而生。“开放性”教学作为基础教育数学教学改革及研究的一个热点,目前正受到越来越多教者的关注。本文针对开放性教学的有效实施问题,着重从以下四个方面进行思考:1.树立开放性观念;2.设计开放性问题;3.创设开放性情境;4.布置开放 The standard of mathematics curriculum points out that mathematics education should shift from focusing on the acquisition of knowledge to paying attention to the development of human beings, creating an educational environment conducive to the active development of students and providing students with full development space. As a result, a new teaching concept, teaching mode - open teaching came into being. “Openness ” teaching, as a hot point in the reform and research of mathematics teaching in basic education, is receiving more and more attention. This article focuses on the effective implementation of open education, focusing on the following four aspects: 1. To establish the concept of openness; 2. To design open issues; 3. To create an open situation; 4.