在传统的教学中,教师未能摆脱“注入式”教学模式的束缚,过多地采用抽象的讲解,生硬地向学生灌输所学知识,忽略了学生的“前经验”;学生学到的只是空洞的理论,遇到复杂多变的现实问题往往束手无策,不能运用所学知识去解释生活中的物理现象.在新课程背景下,教师要在教学中创设真实、形象的情境,激发学生学习物理的兴趣,激活学生的思维,培养学生自主学习的意识,使学生在具体的情境中获得体验,主动建构认知体系,提高 In traditional teaching, teachers failed to get rid of the shackles of the “injective” teaching model. They used abstract explanations too often, spurred students to learn what they had learned, and ignored students’ “pre-experience”; Only empty theories are learned. When faced with complicated and changeable practical problems, they are often at a loss. They cannot use the knowledge they have learned to explain the physical phenomena in life. In the context of the new curriculum, teachers must create real and visual situations in teaching. Stimulate students’ interest in learning physics, activate students’ thinking, cultivate students’ awareness of self-learning, enable students to gain experience in specific situations, actively construct cognitive systems, and improve