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义务教育六年制小学数学第二册第五单元“100以内的加法和减法(一)”的“整理和复习”。分两次编排了8道题。新教材如此编排简明扼要,少而精,重点突出,既能复习和整理本单元的知识。又能运用新题材、新结构、新形式,引发学生深入思考。具体的说。“整理和复习”有以下几点特色。一、题型新颖独特,形式多样“整理和复习”,精心设计了新颖独特、形式多种多样的题型。如: 1.“法理”结合型。如第44页第1、2题。将算法算理相结合,先用表格让学生口算各类题。再从中抽出两题设问:“怎样想能很快算出得数?”促使学生既要弄懂算法,又要弄清口算过程。 2.对照比较型。如第45页第4题,第60页第1、3两题中。采用两问式加强对比:“黄瓜比萝卜多多少筐?萝卜比黄瓜少多少筐?”“鹿比虎多__只,虎比鹿____只?”“笔算加法和笔算减法有哪些地方相同?有哪些地方不同?”还采用题组式进行对比,第60页第3题中三道小题编成一组,显然有助于学生比较它的异同。
Compulsory education six years of primary school mathematics second unit fifth unit “less than 100 addition and subtraction (a)” “finishing and review.” Arranged eight questions in two. The new textbook choreography concise, less but refined, focused, both to review and organize the knowledge of this unit. But also the use of new topics, new structures, new forms, triggering students to think in depth. Specifically. The “finishing and review” has the following characteristics. First, the new and unique questions, various forms of “finishing and review”, well-designed novel unique, varied forms of the questions. Such as: 1. “Legal” combined type. As on page 44, the first two questions. Algorithm algorithm will be combined, the first form to allow students to count all kinds of questions. Then draw two questions asked: “How can we quickly calculate the number?” To promote students not only understand the algorithm, but also to understand the process of accounting. 2. Comparison of comparative type. For example, on page 45, question 4, on page 60, in questions 1 and 2. Use two questions to strengthen the contrast: “Cucumber is more than baskets radish? Radish less than baskets basket?” “Deer more than the tiger __ only tiger than the deer ____ only?” Same? Where are the differences? "It is also compared with the title group, the first three pages on page 60 in a small group of three, apparently helps students compare its similarities and differences.