著名心理学家皮亚杰认为,任何学习活动都要从情境开始,学生在情境中能获得最直接的多方面的体验与感悟.利用学生新旧知识之间的矛盾,日常概念与科学概念之间的矛盾,直觉与客观事实之间的矛盾,理论与实际之间的矛盾等而创设的情境,更易引发学生的认知冲突、思维碰撞、激发学生的学习兴趣与学习欲望,形成积极的认知和情感氛围.在矛盾情境中引导学生分析“矛盾”现象产生的原因,积极思考、探究、讨论,不但可以习得知识,加深对知识 Well-known psychologist Piaget believes that any learning activities must start from the situation, students can get the most direct and diverse experience and perception in the context.Using the contradiction between the old and the new knowledge of students, between the concept of everyday and scientific concepts , The contradiction between intuition and objective fact, the contradiction between theory and reality, can lead to students ’cognitive conflicts, collision of thinking, stimulating students’ interest in learning and desire for learning, thus forming positive cognition And emotional atmosphere in a contradictory situation to guide students to analyze “paradox ” the reasons for the phenomenon, a positive thinking, exploration, discussion, not only can acquire knowledge, deepen the knowledge