学习源于问题.通过问题,学生可以进行思考、分析,然后找出解决方法,进而提高学习能力.在教学中,教师应把握学生的探究心理与好奇心理,联系教学内容与学生已有认知结构,创设系列问题即问题链,来诱导学生思考,启迪学生的智慧,并实现教学目标.由形式上来说,问题链是环环相扣;由内容上看,则是步步深入,层层推进,以让学生多层次、多角度探究与学习,引导学生大胆质疑、独立思考.对此,笔者以高中化学教学为例谈点体会.一、引入性问题链引入性问题链也就是新课导入时所创设的系列问题.在化学教学中,要让学生自主感受化学概念、化学原理、化学规律的形成过程,教师需将学生引入到已有认知结构系统中,让他们回顾关于新课的已学知识,并把握知识内涵与知识外延,从而由旧知融入至学生“最近发展区”.同时引导 Learning from the problem through the problem, students can think, analyze, and then find solutions to improve learning ability.In teaching, teachers should grasp the students of inquiry psychology and curiosity, contact the teaching content and students already know Structure, the creation of a series of problems that the problem chain, to induce students to think, enlighten students wisdom, and to achieve teaching objectives .From the formal point of view, the chain of problems is interlocking; by content, it is further step by step, Promote, in order to allow students to explore and learn at multiple levels and angles, to guide students to boldly question and think independently.To this end, the author of high school chemistry teaching as an example to talk about experience .One, the introduction of the problem chain Introduction of the problem chain is the new course In chemistry teaching, let students experience the formation process of chemical concepts, chemical principles and chemical laws independently. Teachers should introduce students into the existing cognitive structure system and let them review the new courses Of the already learned knowledge, and grasp the knowledge and knowledge of the extension of knowledge from the old knowledge into the student “recent development zone ” at the same time to guide