Saturday, November 24, 2007

Fun mathematics

I got a link from my friend Dutchalone in StumbleUpon to this video:

Make sure that you watch the whole video before using this technique because it has some initial conditions.

Of course I checked where this interesting technique came from. First of all I found out that there are more videos like this in Metacalfe in a channel named glad2teach.

More information can be found in Glad2teach website. There is a link to Faster Math Trick Videos which offers more examples and a change to buy the Complete EasyCal Series (Around 30 such faster Math trick videos)

According to the site:

These amazing tricks of faster Math have been taken from a 5000 year old book called Veda ( The ancient Hindu Scriptures ). If the name Veda sounds familiar to you, that is because it is the same book which gave to the world Yoga and Ayurveda.

The site suggest that after watching the videos you'll want to throw your calculator out of the window. I can imagine that happening. Too bad I still need the calculator for more complicated calculations. In my opinion calculators are used too much nowadays, at least in Finland.

You should also check dutchalone’s StumbleUpon page. According to his profile

I was dutchalone ..i cant change my name ..I am dutch but not alone anymore :-)For I have found my Love..Irja/ both had given up hope in Love !!! Blessings and gratefullness to SU from us both :-)

Both ducthalone and mairem have the most wonderful pages. I could probably use a whole day just to watch those amazing pictures.


Tanny said...

I love this site, it has great tricks on it

Anonymous said...

Your a star Leena :-)

Anonymous said...

I LUV this math which proves you are never too old to learn or love math!

Leena, Thank you, Thank you! My 11 year old son will benefit greatly from these tricks and sites!

Adrienne Zurub
'Notes From the Mothership The Naked Invisibles' coming January 2008!

Meghna said...

Hi Leena,
This was great. you're so much full of maths tricks. you're a great mathematician and I'm sure your students would be proud of you!

--xh-- said...

when i saw your post, the first thing that crossed my mind was 'hey, i hv seen this in vedic mathematics', and realised it is teh same :) long time back - 10 or 11 years- we used to read and discuss vedic mathematics :)

JohnCunningham said...


I just showed my second grade son the magic of multiplying by nine. I felt his same excitement watching this. It is fantastic!

Integration by parts xe x said...

Its very interesting trick and such trick are very good in saving our time and very good for competitive examination.