孔子曰:“学起于思,思源于疑”。先学后教,以学定教正是要给学生创造一个他们相对自由的学习情境,而不是先行做出“想要他们做什么的规范”。在以学定教的空间内,学生可以依照教师提供的框架,调节自己的学习进度、内容,可以选择自己熟悉的问题、热点来学习,可以进行适当的活动; Confucius said: “Learning from thinking, thinking from doubt.” Instead of “making the norm” for what they want to do, it is necessary to create a relatively free learning context for students before they teach. In the space of learning to teach, students can adjust their learning progress and content according to the framework provided by teachers, and can choose their own familiar problems and hot spots to learn and carry out suitable activities.