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一、要“以少胜多”,不要搞“题海战术”数学知识有着纵横联系,左右交叉的严密的系统结构。在复习时要精心地选择、设计复习材料,把具有整体结构的材料呈现给学生,使外在的数学知识结构内化为学生的认知结构,这样不但便于记忆,而且便于理解和应用。例如: 1.设计知识复盖面广的系列问题出示3/4,提出下列问题:①说出它的意义;②说出它的分数单位;③把它化成小数、百分数、成数;④说出它的倒数;⑤把它写成比的形式。
First, we must “win less and win more,” and we should not engage in a rigorous systematic structure of “cross-sea tactics” in which mathematical knowledge has vertical and horizontal links. In the review should carefully choose to design review materials, the overall structure of the material presented to the students, the internal structure of the mathematical knowledge within the cognitive structure of students, so that not only easy to remember, but also easy to understand and apply. For example: 1. A series of questions covering a wide range of design knowledge is presented at 3/4. The following questions are raised: ① its meaning is stated; ② its fractional unit is stated; ③ it is converted into decimals, percentages, Out of its countdown; ⑤ write it in the form of ratio.