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这学期任教一年级数学,刚开始有很多的不适应,也有很多的感触,其中也存在一些自己的看法。因此我大胆对本册教材提议:增加一堂还原凑十法的练习课,并编进教材里。一年级上册数学书上94页第9题:我以8+()=12为例进行分析:8+()=12的意义是8和()里的数可以组成12,反过来,12可以分成8和()里的数。所以12-8就可以求出()里的数。可是12-8是借位减法计算,不是本学期的学习内容,但个别同学也能计算出来,知道12中
This term taught first grade math, beginning with a lot of not fit, there are a lot of feelings, of which there are also some of their own views. Therefore, I boldly proposed to this textbook: to add an exercise class to restore 10 methods and to compile it into the textbook. Grade 9 Math Book on page 94 Problem 9: I take 8 + () = 12 as an example for analysis: 8 + () = 12 means that the number in 8 and () can be 12, and vice versa Divide into 8 and () in the number. So 12-8 can find the number of (). But 12-8 borrow subtraction, not the content of this semester, but individual students can calculate that 12