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几何的入门 ,的确甚难。对于 1 2～ 1 3岁的初一学生来说 ,从数到形的变化在认识上是一个极大的飞跃 ;从运算到推理 ,在方法上又是一个极大的飞跃 ;精炼、严谨的几何语言 ,特别是文字语言、符号语言和图形语言的三者互译在领会和表达上更是一个极大的飞跃。姑且把这三个“大飞?
Getting started with geometry is really hard. For junior students aged 12 to 13 years, the change from number to shape is a great leap in understanding; from calculation to reasoning, it is a great leap in method; refined and rigorous. The translation of the three languages of geometric language, especially the language of words, symbols, and graphics, is a great leap in understanding and expression. Let’s take these three “big fly?”