《数学课程标准》指出,教师的教学应该以学生的认知发展水平和已有的经验为基础,面向全体学生,注重启发式和因材施教。教材中的情境图,就是结合学生的发展水平和已有的生活经验而编写的,新教材无论从内容的选择还是呈现方式上,都体现了以学生发展为本的理念,一幅幅绚丽多彩的图画,一个个生动有趣的情境故事无处不在,给枯 The Mathematics Curriculum Standard states that teachers’ teaching should be based on the level of cognitive development and existing experience of the students, be aimed at all students, be heuristic and be taught in accordance with their aptitude. The situation map in the textbook is based on the level of development of students and existing life experiences. The new textbook embodies the concept of student development based on the choice of content or presentation style Picture, a vivid and interesting story of the situation everywhere, to withered