立体几何教材教法拾遗湖北省武汉市二中王池富１．更换定义形式来讲解教材第９页对“异面直线”定义为“不同在任何一个平面内的两条直线”．新课开始，若直接给出这个定义，学生难以透彻理解．我们在教学中改用与教材定义等价的叙述（更换定义形式）：首先要求学生观察实... Three-dimensional Geometry Textbook Teaching Method Addition: Wang Chi-fu, No.2 Middle School, Wuhan City, Hubei Province Replace the definition form to explain the textbook on page 9 of the definition of “Horizontal Straight Lines” as “two straight lines that differ in any one plane.” When the new class begins, if this definition is given directly, it is difficult for students to fully understand it. We use the narrative that is equivalent to the definition of the teaching material in the teaching (replacement definition form): First of all, ask students to observe...