在义务教育中实施素质教育,最重要的标志就是在教学上能否实现“教育面向全体”。然而据我们调查,在数学学科教育中处于“不能学习”状态的学生却是在逐年扩大。例如1998年浙江省台州市中考数学试题中有一个计算题是3-5=_,据统计,考生答错该题的失误率达10％以上,这充分表明数学困难生问题确实非常严重。我们经常可以发现,有的学生初中毕业还不能正确地进行最简单的有理数加减运算,困难生在学习过程中,往往因“无法参与”走向“拒绝参 In the compulsory education in the implementation of quality education, the most important symbol is whether teaching can achieve “education for the whole.” However, according to our survey, students who are “unable to learn” in mathematics education are expanding year by year. For example, in 1998 Zhejiang Taizhou senior high school entrance examination math test questions is 3-5 = _, according to statistics, the candidates answered the question the error rate of 10% or more, which fully shows that math problems students problem is indeed very serious. We can often find that some students can not correctly carry out the simplest rational numbers addition and subtraction operation when they graduate from junior high school. However, students who are difficult to live in the learning process tend to “refuse to participate”