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在一次练习中,我发现学生写道:2~(1/2)+3~(1/2)=5~(1/2).为什么2~(1/2)与3~(1/2)不能加起来等于5~(1/2)呢?对此,我在课堂上进行了师生互动探究.
In one exercise, I found that students wrote: 2 ~ (1/2) + 3 ~ (1/2) = 5 ~ (1/2). Why 2 ~ (1/2) and 3 ~ (1/2 ) Can not add up to equal 5 ~ (1/2)? In this regard, I conducted a teacher-student interaction in the classroom to explore.