以日常生活中随处可见的物体为研究对象,具有现实性。教材的编排在这里巧妙地以“生活中的物体─空间图形─面、点、线”为序,丰富对现实空间及图形的认识,建立初步的空间观念,充分体现了数学来源于生活的道理。 With the objects that can be seen everywhere in daily life as the research object, it is realistic. The arrangement of textbooks skillfully here enriches the understanding of the real space and the figures in the preconceived notion of “objects in the life-space graphics-surfaces, dots and lines”, and establishes the initial space concept, fully embodies the fact that mathematics comes from life The truth.