增强用数学的意识 60年代初期,我读过高一学生写的两篇短文,一篇是《两种草房的比较》,另一篇是《老木工的算法》,都是学生在农村劳动时给自己出的题。 学生在农村看到两种不同形状的屋顶,一种是双披式(两个全等的矩形为屋顶),另一种是斗箩式(四个等腰梯形为屋顶,其中两大两小,大者位居屋 Enhance the consciousness of mathematics. In the early 1960s, I read two essays written by high school students. One was “Comparison of Two Kinds of Cottages” and the other was “Algorithm of Old Carpenters.” They were all students working in the countryside. Give yourself a question. Students see two different types of roofs in rural areas. One is a double-style (two congruent rectangles are roofs) and the other is a bucket-style (four isosceles trapezoids are roofs, two of them are small , the largest of the homes