教师在教学中应遵循儿童的认知规律,以直观形象为主,方法多样。应关注创设思维情境、积累感性经验、抽象概括结论和拓展应用等的基本环节,才能生成有效的富于生命的课堂,点燃学生自主学习的火把。 Teachers in teaching should follow the children’s cognitive rules, intuitive image-based, methods and diverse. Should pay attention to the creation of the thinking situation, the accumulation of emotional experience, the abstract summary of the application and development of basic links, in order to generate effective life-rich classroom, ignite the torch of student self-learning.