数学思维训练(第06期)

网友投稿 2018-07-16 11:03

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写在前面

最近在陆续写一些有关数学奥数(数学思维训练)的内容,欢迎持续关注~~~

强调一下:重在思维的训练,尽量不要有太多的功利心。

一年级

第15讲  简单推理

https://cdn.china-scratch.com/timg/180718/1103002P0-0.jpg

通过图形符号来学习四则运算:

https://cdn.china-scratch.com/timg/180718/110300M54-1.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

这道题有意思

https://cdn.china-scratch.com/timg/180718/1103013321-3.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

不能考虑负数吧

https://cdn.china-scratch.com/timg/180718/110301H51-5.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

第16讲 排列与搭配

https://cdn.china-scratch.com/timg/180718/1103015T7-7.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

小朋友们要是真能接受这种思路的话,初高中的数学学习会轻松很多。

https://cdn.china-scratch.com/timg/180718/1103014J6-9.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpghttps://cdn.china-scratch.com/timg/180718/110301O46-11.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpghttps://cdn.china-scratch.com/timg/180718/1103013342-13.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

第17讲 数的大小与多少

https://cdn.china-scratch.com/timg/180718/11030160S-15.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

形式运算

https://cdn.china-scratch.com/timg/180718/1103014Y3-17.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpg

分类讨论,排列组合……

https://cdn.china-scratch.com/timg/180718/1103012135-19.jpghttps://cdn.china-scratch.com/timg/180718/110300J49-2.jpghttps://cdn.china-scratch.com/timg/180718/1103011556-21.jpghttps://cdn.china-scratch.com/timg/180718/1103015D7-22.jpg

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