教学是一个互动的过程,是教师的教和学生的学共同作用而实现教学目标的过程。教师如何才能让学生在自己的引导下获得对知识的理解,形成一定的技能,这是广大一线教师努力追求的目标。笔者认为,以恰当的问题引导学生,让学生去分析问题、解决问题是不错的方法。那么,如何才能保证问题的有效性呢?提问的类型又有哪些? Teaching is an interactive process, which is the process of teacher’s teaching and student’s learning together to achieve the teaching goal. How teachers can enable students to gain knowledge of their own guidance, the formation of certain skills, which is the majority of front-line teachers to pursue the goal. In my opinion, it is a good idea to guide students with appropriate questions so that students can analyze and solve problems. So, how to ensure the validity of the problem? What are the types of questions?