古人云:“学起于思,思源于疑”可见疑是思之始。学生有疑问才会去思考问题,寻觅答案,以激起强烈的求知欲和探索精神。爱因斯坦曾说过:“提示一个问题,往往比解决一个问题更重要。”有经验的教师常常把设疑作为教学的关键环节来抓,在课堂上教师如能巧设疑点,善设疑难,创造质疑情境,启发学生由浅入深地设问,引发学生积极思考,以调动学生的学习积极性,使他们的主观能动性得到充分的发挥,形成一种内在的需要和渴望,从而去主动地探索知识,逐步培养学生发现问题和解决问题的能力, The ancients said: “Learning from thinking, thinking from doubt” visible suspect is the beginning of thinking. Students have questions to think about problems and seek answers to stimulate a strong curiosity and exploration. Einstein once said: “To remind a question is often more important than solving a problem.” Experienced teachers often put suspicion as the key link in teaching. In the classroom, teachers can make mistakes, , Create questionable situations and inspire students to set questions from shallow to deep, arouse students 'positive thinking, in order to arouse students' enthusiasm for learning so as to give full play to their subjective initiative and form an intrinsic need and desire to actively explore Knowledge, and gradually develop the students ability to discover and solve problems,