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高小算术第三册“分数的意义和性質”这个单元,包括分数的意义、性質、大小比較及約分通分,小数与分数关系比較。这部分教材的关键主要是給学生形成分数的概念和懂得分数的意义和性質。这部分教材的难点也就在于形成“单位一”以及“单位几”平均分成几分能得分数的概念。下面就这部分教材作如下一些分析和教法探討,供老师們参考。
High and small arithmetic volume three “meaning and nature of the score” of this unit, including the meaning of the score, nature, size comparison and about points pass, decimal and score comparison. The key to this part of the textbook is to give students the concept of scores and understand the meaning and nature of scores. The difficulty of this part of the textbook also lies in the formation of “unit one” and “unit few” divided equally into the concept of scores. Below this part of the textbook for some of the following analysis and teaching methods for teachers reference.