这本Challenge Math,很值得看


Math is often taught as all scales and no music. This book contains the music” - Challenge Math

这是beestar推荐的problem solving读物.我被他的题目吸引. 到手后发现真是一本好书. 它编的生动有趣. 加入了卡通人物和图解. 难的concept对小孩容易理解了. 不用我推,孩子爱读,当成他自己的书了. 家长有什么比这个更收益的 J

有充分的练习题. 每节的有level 1& 2, Einstein Level 习题. 每题附加详细讲解. 每次解出Einstein Level的题, 孩子骄傲的又蹦又跳.

书后还有20 mathcontests 供能力自测.买的很值得.

孩子常常遇到典型的解题能力测试题, 如鸡兔同笼, 归一, 和差问题等. 给上小学的孩子做归类时, 有一些思路解释起来挺费力. 如果你有这感受, 可试试这本书.

它的题型丰富, 难易搭配.它用孩子的语言讲述的思维方式对提高解题和竞赛能力是有益的.这是给小学和初中生写的. 我觉得对数学较好的小学孩子很有帮助.我们看完成了3:

对归一问题如:

It took 6 people 8 days to build a brick wall. The construction crew needs to build an identical wall but needs it done faster. If they add 2 people to the crew, how long will the brick wall take to build now?

此书用”Think 1”的方式解析

数列问题,   

What’s the 500th term of this sequence 7, 16, 25, 34, …?

也讲的容易理解了.

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