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在小学阶段,学生在解决诸如“已知一个数的几倍多几(或者少几)是多少,求这个数”的问题时(如下图),学生在答题时有个怪现象:在没有任何条件约束的情况下,主动运用方程去解决这个“逆向问题”的学生少之又少,大部分学生会采用算术解法,但错误率却非常之高。学生“不喜欢”用方程解,不单单是因为用方程解格式
In the elementary school, when students solve the problem such as “how many times (or less) is known to a certain number and the number is known”, students have a weird phenomenon when answering questions Without any constraints, there are very few students who take the initiative to solve this “reverse problem ”. Most students use arithmetic solutions, but the error rate is very high. Students “do not like ” use the equation to solve, not only because of the equation solution format