一、合理选择教学互动问题要实现教学互动,必须在进行课堂教学设计时,选择好互动题目。数学互动题目的来源主要有四个方面:一是从讲授内容中最富有启发性、争议性、批判性、创新性的内容中选择;二是从以往数学教学中积累的学生学习中容易产生疑点、难点、重点中选择;三是从课前教学准备会上,了解到学生相关问题中选择;四是从与学生日常生活密切相关的数学活动中选择。总之,选 First, the rational choice of interactive teaching To achieve teaching interaction, must be in the classroom teaching design, choose a good interactive topics. There are four main sources of the subject of the interactive mathematics: one is to choose from the most enlightening, controversial, critical and innovative contents of the lecture; the other is that it is easy to produce doubt from the students' learning accumulated in the past mathematics teaching Difficulties, the focus of choice; Third, from pre-class teaching preparatory meeting to understand the student-related issues in the choice; Fourth, from the students daily life is closely related to the selection of mathematical activities. In short, choose