Synopsis
《小学奥数创新解题法》介绍了：最常用、最实用的三种解题方法，即：假设法、图解法和抓不变量法．不但拓展了假设法的解题范围，还介绍了一种新的图解法一一拼份图解法，把图示由一种辅助性的解题手段提高完善为一种形象直观的独立的解题方法，对提高学生的解题能力非常有帮助。书中还第一次揭示了小学奧数十类典型应用题的解题通用公式，可帮助学生学会各类题型的转换，将不熟悉的题型转换为熟悉的题型，增强其综合应用能力。一.假设法（一）假设一个过渡性数字，使复杂的运算过程变为最简整数运算（二）设“1”（三）假设两个量相等（四）假设某个量的份率与另一个量的份率一样（五）假设两种要求的量是同一种现象。然后按题中的已知条件推算并对照已知条件把数量上出现的矛盾加以调整最后求出。常见的典型题型有鸡兔问题、百分数问题（六）溶液问题（七）变倍问题（八）数阵二.图解法（一）平面图形解题法（二）拼份图解法三.抓不变?法（分数法）（一）分子不变（二）分母不变（三）分子和分母的和不变（四）分子和分母的差不变（五）化变为不变四.比较几种解題法（一題五解）附表小学十类典型应用题解題通用公式表
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Innovative problem-solving method primary Mathematical Olympiad(Chinese Edition)
ISBN 10: 7508267672
ISBN 13: 9787508267678
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Seller: liu xing, Nanjing, JS, China
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paperback. Condition: New. Language:Chinese.Pages Number: 147 Publisher: Golden Shield Pub. Date :2011-4-1. This book systematically describes the most common and most useful of the three problem-solving methods. namely: the assumption method. graphical method and grasp invariant method. Assuming the law not only expands the scope of problem-solving. but also introduces a new graphical method eleven copies of the graphical method to fight. the icon by a complementary problem-solving tools to improve perfect as a visual. Seller Inventory # LD3227