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百分数意义的胡金婵认识和教法构想义务教材百分数的意义和现行教材相比，有以下三点变动：１．把三好学生所占的“成份”改为“比率”。用“比率”引入百分数，更便于学生从知识的最近发展区出发同化新知识。２．在概括百分数意义之前，又增加了一个求产品合格率的例子。...
The significance of the percentages of Hu Jinchan understanding and teaching idea of the significance of the percentage of compulsory textbooks compared with the current teaching materials, the following three changes: Change the “ingredients” of Miyoshi students to “ratios.” The introduction of “percentages” in percentages makes it easier for students to assimilate new knowledge from the nearest areas of knowledge. 2. Before summarizing the meaning of the percentage, added an example of product yield. ...