色彩鲜艳、形式多样而又富有童趣的主题图是人教版义务教育课程标准数学实验教材的一大特色。其意图在于从学生已有知识经验出发,通过现实的生活场景、活动场景等形式来呈现学习素材,提供给学生探索知识的空间,激发学生学习的欲望;体现数学方法的开放性、创造性,为教师组织教学提 Colorful, colorful and full of childlike theme map is a major feature of the curriculum standard mathematics experimental teaching materials of the compulsory education curriculum. The intent is to present the learning materials from the students ’existing knowledge and experience through realistic scenes of life, activities and other forms, to provide students with space to explore knowledge and stimulate students’ desire to learn. To demonstrate the openness and creativity of mathematical methods, Teachers organize teaching mention