2014-04-30

中文的数学故事

其实我也没有一点都不写么。转过来一个:

推荐李毓佩的数学故事。Chapter book的形式。每章随着故事掺进去一两道数学题,也有解题的思路。

李毓佩数学童话集·小学低年级
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这本有拼音。每章后面有半页解释这章里题目的知识点,有试一试的题目。书最后有试 一试答案,数学知识点对照表列出各个知识点在哪一个故事里有,难易程度什么的。

给小子当故事书从头念到尾了。上来头一个故事,瘸腿狐狸和豁嘴狼为偷鸡的事打起来了,要决斗 。用数学题决定谁先咬对方一口。狼给狐狸出的题:几只狐狸去赶集,半路偷了一窝鸡 ,一狐一鸡多一鸡,一狐两鸡少两鸡,问有几只狐狸几只鸡。。。。。。这个小子不会,但是大概能听懂后面的解释。

还有数长方形的题,一个房子有2X3个长方形的玻璃,数数一共有几个长方形。我很喜欢里面给孩子讲的解题思路。怎么归类先数一块玻璃的,再数两块玻璃的,etc。这种题我觉得自己也能出,但是一般我就停留在孩子数对就好了,不如书上讲解思路那么清晰。后面试一试让数2x4的窗户,孩子就真的用上了书里讲的办法,分类数的。

还有类似开灯关灯,告诉两个数的和与差让猜两个数是什么的,等等。题目对我们来说有点难。但是书里的解释很好,故事性又强。孩子还是爱听,追着让我们给念。

彩图版李毓佩数学故事系列
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这套一共七本。没拼音,字很大很清楚。彩色印刷,纸张的质量也不错。和上面那本不一样的地方是,这本没有后面的知识点讲解和试一试的题目,就是纯数学童话故事。

我们家小子不是铁杆西游记迷么,我就先翻了一下《数学西游记》那本。第一章里说,猪八戒 不敢睡觉,怕打呼噜把妖精招来。他想了个办法,地上画一个4x4的方块,找四个动物来帮他站岗。数学猴(不是孙悟空)出主意说每行每列上都有动物站岗才安全。。。然 后,就解释了一共有16x9x4x1种排列方法。。。

后面我就没接着读了,因为我们家小子绝对听不懂。其他几本书翻了一下也大概类似难度。得等孩子大一些再看。Again,如果不纠结一定会做里面的数学题,当纯故事看也挺有意 思的,至少我看得下去。:p

后记: 上面的是大概去年8、9月份时写的。这之后,架不住西游记迷的要求,我们还是囫囵吞枣把书念了。大多数的题都不明白,但是完全不影响孩子的阅读兴趣。上面那本也是,确实按书说的,适合小学低年级的小朋友。如果真要一道一道做题,一年多以前对儿子来讲就有些困难。但是象我们不强求每个题都想都做,很多时候就是当纯故事书来念,完全没有问题。孩子也认真听题听了解释,偶尔还会问问问题,主动想一想。

数学就在我们生活的每一个角落。学数学一方面要认真严谨,drill和worksheet必不可少;另一方面也要给孩子机会体会数学的乐趣。一直想在孩子小的时候尽量让他体会趣味数学,可是书却不好找。奥数的书很多,要么太艰深,要么掺进很多脑筋急转弯。很佩服作者李毓佩,能写出这么寓教于乐的故事来。不哗众取宠,不是在教小tricks。慢慢有机会我们会在把书仔细读一读。

2014-04-25

Rose's Garden

书我没有看过,只看到了小子学校retell的作业。好久什么都没写了。先拿小子作业充个数。:)

Once upon a time, there was a girl named Rose. Rose was a traveler. She rode on a gigantic teapot. Rose collected flower seeds wherever she went.

One day, the teapot was full and Rose knew it was time to plant her seeds. Then Rose saw land, so she hopped off her teapot and went finding a place to plant her seeds in the city.

First, she went to the busiest part of the city and then she found a place just right to plant her seeds. So she went back to the teapot to get her seeds but all she saw were some seeds inside the teapot and some birds in the sky. "Oh no," she thought. The birds ate most of the seeds! So she took the rest of the seeds and planted them.

She waited for them to grow. She waited all summer. She waited all fall. She waited all winter. She waited all spring. But her flowers didn't grow.

Word spread across town about Rose. One day, a little girl gave Rose a paper flower.

"I made this for your garden," said the little girl.

"Thanks you," said Rose.

And so on, people gave Rose paper flowers.

One day, Rose heard a humming sound. It was a bee!. The bee landed on a flower. "Oh no," thought Rose, "It's a paper flower!"

But wait a second. The flower was real and another one... Rose's garden was filled with a sweet smell.

"Finally I'm home," thought Rose.