随着新课程改革的不断深入,传统的课前复习回顾和课中平铺直叙,已难以适应教学的需要,“盐需溶入汤中,才能被吸收;知识需要溶入情境之中,才能显示出活力”,情境创设的重要性已越来越被更多的人所接受,对于内容相对枯燥而言的数学来说,在课堂教学中创设有趣、有效、高效的情境, With the continuous deepening of the reform of the new curriculum, the review of the pre-school review and the teaching of the teaching in the classroom have been difficult to adapt to the needs of teaching. Only when salt needs to be dissolved in the soup can it be absorbed. Vitality, "the importance of context creation has been more and more accepted by more people, for the relatively boring mathematic, in the classroom teaching to create interesting, effective and efficient context,