高中立体几何内容《水平放置的平面图形的直观图画法》在新旧教材中作了不同的处理,该内容在旧教材及新教材高二数学第二册(下B)中都是放在“平面的基本性质”之后接着学习的,但唯独在新教材高二数学第二册(下A)中,该内容却被安排到9“.7棱柱的性质”之后才学习。这一内容往后 The high-level solid geometry content “Intuitive Drawing Method for Planar Graphics Placed Horizontally” was dealt with differently in the old and new textbooks. The content was placed on the “plane” in the old textbook and the second textbook of the new textbook (second B). “The basic nature of” was followed by learning, but only in the second volume of the second year of mathematics in the second grade of mathematics (sub-A), but the content was arranged to the nature of 9 “.7 Prism” before learning. This content is backward