教学情境就是以直观方式再现书本知识所表现的实际事物或者实际事物的相关背景,以学生认识过程中的形象与抽象、实际与理论、感性与理性、旧知与新知的关系和矛盾。新课程标准要求,学生能积极参与数学活动,对数学有好奇心与求知欲,在数学学习活动中获得成功的体验,锻炼克服困难的意 The teaching situation is to reproduce the relevant background of the actual things or actual things represented by the book knowledge in an intuitive manner, and the relationship and contradiction between the image and the abstract, the actual and the theory, the perceptual and rational, the old knowledge and the new knowledge in the process of the students’ cognition. The new curriculum standards require that students actively participate in mathematics activities, have curiosity and curiosity in mathematics, have a successful experience in mathematics learning activities, and exercise to overcome difficulties.