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笔者在执教《完全平方公式》(人教版数学八年级上册)时发现,学生很容易把符号搞错,问其他班学生也是如此.究其原因,我觉得完全平方公式的语言描述不够恰当,现提出与同行交流,不到之处请斧正.
When I was coaching the “Complete Square Formula” (the first grade mathematics eighth grade), I found that students could easily make mistakes in the symbols and asked students in other classes to do the same. For the reason, I think the language description of the complete square formula is not appropriate. Now propose to exchange with your counterparts.