《中小学数学》(初中版)2008年第4期刊《谈谈三角形中位线定理的证明》和《关于“三角形中位线定理证明”的备课思考》二文,笔者认真钻读,收获很大.现首先指出文中两处笔误:第一页1.教材中关于三角形中位线定理的流行证法说法三中有两处“使E点落到F点的位置”应改为“使D点落到F点的位置”;2.三角形中位线定理的另一种普通证法中 Mathematics for Primary and Secondary Schools (Junior Middle School), the fourth issue of the 2008 issue of “Talking about the proof of the triangle’s median line theorem” and “About the theory of the proof of the theorem of the triangle’s median line”, I earnestly read, Great gains. Now I first point out two errors in the text: First page 1. Popular teaching methods in the textbook about the median line theorem in triangles There are two places in the third place: “Make E point fall to point F.” Should be changed For “D to D to the position of F”; 2. Another common proof of the triangle’s median line theorem