根据数列找规律

in #cn-malaysia7 years ago

数学,锻炼的是一个人的抽象能力,逻辑思维能力,还能够培养一个人的全局意识。

数学题的求解必须从已知条件入手,寻找各方面潜在的练习与逻辑,最终才能求得答案。

这真的是少儿训练智力的很好的工具。

其中我认为最有效的最简单的,就是找规律的题目。这类题目不需要儿童认字很多,在他们很小的时候就可以进行,有些题目还是要经过仔细地思考才能解答出来的,大人都不一定能很快回答。

下面我们来看2道找规律的题目:
image

第一道题相对简单,观察前后数字,发现相邻的2个数相加是有规律的:
image
分别是2,2的平方,2的立方,2的4次方,所以,括号内的数字和6相加应该等于16,所以最终为10.
image


第二题就有些难度了。

通过观察,会发现相邻的1个数,2个数之间都没有什么规律,那么就先看看相邻的3位数有没有什么加减乘除的规律。

先看减法,是这样的,似乎没有什么规律:
image
但是,1刚好是1的平方,而49刚好是7的平方。

也就是说,后两个数相减的差,是第一个数的平方。

由此可以得到,括号里的数减去57以后,是64(8的平方),所以结果是121:
image

仔细想想,这道题还有第二种规律:
以4个数字为一组,第二个数乘以第三个数,再加上第一个数,等于第四个数:
image

我做做这些题目,都感到挺有意思的,但这是第一次教儿子做这种题,他明显还不太适应,一时没有什么头绪。

但是当我揭晓答案给他讲详细步骤时,他还是很感兴趣的。

看来今后我还得多找一些类似的找规律题目来刺激刺激他。

Posted using Partiko Android

Sort:  




This post has been voted on by the SteemSTEM curation team and voting trail in collaboration with @curie.

If you appreciate the work we are doing then consider voting both projects for witness by selecting stem.witness and curie!

For additional information please join us on the SteemSTEM discord and to get to know the rest of the community!

Congratulations! This post has been upvoted from the communal account, @minnowsupport, by khair from the Minnow Support Project. It's a witness project run by aggroed, ausbitbank, teamsteem, someguy123, neoxian, followbtcnews, and netuoso. The goal is to help Steemit grow by supporting Minnows. Please find us at the Peace, Abundance, and Liberty Network (PALnet) Discord Channel. It's a completely public and open space to all members of the Steemit community who voluntarily choose to be there.

If you would like to delegate to the Minnow Support Project you can do so by clicking on the following links: 50SP, 100SP, 250SP, 500SP, 1000SP, 5000SP.
Be sure to leave at least 50SP undelegated on your account.

Congratulations @khairulzaman! You have completed the following achievement on the Steem blockchain and have been rewarded with new badge(s) :

You received more than 6000 upvotes. Your next target is to reach 7000 upvotes.

Click here to view your Board
If you no longer want to receive notifications, reply to this comment with the word STOP

Support SteemitBoard's project! Vote for its witness and get one more award!

Coin Marketplace

STEEM 0.04
TRX 0.33
JST 0.101
BTC 65101.89
ETH 1898.81
USDT 1.00
SBD 0.38