提问,是教学中经常运用的一种手段。它的作用主要表现在:引导学生获取知识和巩固知识,唤起学生积极的思维活动,保持良好的学习兴趣和持久的注意力,从而培养和提高学生分析问题与解决问题的能力,这是主要的作用。另一方面,从信息论角度看,教学过程是师生之间信息双向传递的过程。控制论的创始人维纳 Ask questions, is often used in teaching a means. Its main functions are: to guide students to acquire knowledge and consolidate knowledge, arouse students' positive thinking activities, maintain good interest in learning and long-term attention, so as to cultivate and improve students ability to analyze and solve problems, which is the main effect. On the other hand, from the perspective of information theory, the teaching process is the process of two-way communication of information between teachers and students. Wiener, the founder of cybernetics