Archive for November, 2007
Friday, November 23rd, 2007
Judging by the comments I've received on the blog there's a good amount of interest in techniques for simplifying and speeding up basic arithmetic. This is great because I enjoy learning and writing about these techniques.
Jakow Trachtenberg was a Ukranian mathematician who, while imprisoned in a Nazi concentration camp during ...
Posted in Fast Arithmetic | 6 Comments »
Thursday, November 22nd, 2007
Here's a really easy Math trick you can impress your friends and family with. All you need is 4 index cards and a pen. Here's what you do:
Copy what's on the four cards on the right to your four index cards.
Ask your friend to think of a number between 1 ...
Posted in Fun | 14 Comments »
Wednesday, November 21st, 2007
I'm always impressed to see a new way to do something familiar. Recently, I happened upon a fascinating video, titled Weaving Numbers at the IsAllAboutMath web-site, which has some instructional Math-related videos.
Weaving Numbers demonstrates several non-traditional ways to do multiplication. I found the Napier's bones approach depicted fascinating as well ...
Posted in Education, Geometry, Algebra | 8 Comments »
