Tag Archive 'table'

Aug 24 2009

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Tom Biesanz

Right Brain Math with Digital Roots & Modular Arithmetic is Fun

There was a comment about modular arithmetic and digital roots on Youtube. It brings up some fun looks at math. Modular arithmetic is a clock view of numbers. When a clock goes past 12, it goes back to 1. Right Brain Math uses this with a ten base to create the number wheel. But then the fun begins. It goes around the wheel with the Fours and Sixes, but then we can also see it go in a star pattern to create the Fours and Sixes. The Twos and Eights go in a pentagon shape in opposite directions. The Threes and Sevens make a fancy star, again in opposite directions.
Digital roots are a system of adding the digits of a number, then adding again, until only 1 digit remains (the digital root). Look at the Nines to 90 for a useful pattern: 09, 18, 27, 36, 45, 54, 63, 72, 81, 90. They all add up to 9. Tic-tac-toe squares are definitely not modular arithmetic, nor digital roots. However, look at the digital roots of the 3’s on the tic-tac-toe squares for fascinating patterns. Every number in the columns in the first square adds up 3-6-9. The second square to 6-9-3, the 3rd square to 9-6-3, and the 4th square would add up to 3-6-9 again. I might make a video about digital roots. There is an example below. The left side is the Threes on a Tic-tac-toe square from the video. The right side repeats the left (Threes), but it converts each number to digital roots. See that every set of 3 numbers adds up to 3 or 6 or 9. Notice that 66 is 6 + 6 = 12 which is further reduced to1 + 2 = 3.  Try it. Numbers are fun!

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May 13 2009

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Tom Biesanz

The Right Brain Math Video to Watch Next

Right Brain Math videos are now over 52,000 views in 50 countries. You can follow your interest (if in doubt watch #2), or here is a suggested sequence for watching MisterNumbers videos :
1) Watch the one-minute video on creating the Threes on a Tic-Tac-Toe Square for an experience of Right Brain Math.
2) Watch the Three, Six, Nine animated video to see how quickly this gets powerful (There is more coming).
3) Watch the Right Brain Math overview talk by MisterNumbers.
4) Watch the Sevens on the Magic Blackboard video (over 17,000 views). Relates to the Threes video. Continue Reading »

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Apr 24 2009

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Tom Biesanz

Teaching Math without speaking

I have two new videos creating the Threes, Sixes and Nines from animated patterns on Tic-Tac-Toe squares. The first video is 4 minutes with directions. It is described in the previous post.

I uploaded a second video version today that just has background music (Schubert - Fantasy in C major) with no directions. I am curious about your response to it. There are a few written guides but no spoken words. It is very right-brained with music and visual patterns. Continue Reading »

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Apr 20 2009

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Tom Biesanz

New Video Help: Threes, Sixes and Nine on Tic-Tac-Toe Squares

Click here for great new animated video.

Share this with kids, parents and teachers. I believe these videos can help many, many kids learn the times tables in a fun way and promotes a positive attitude about math. I made this video with fun animation and amazing techniques showing how kids can create the Threes, Sixes, and Nines on Tic-Toe-Toe squares. There is also my video on the Sevens on Tic-Tac-Toe squares, with over 15 thousand views. The Threes and Sevens add up to ten to they follow the same patterns by my Rule of Tens, but backwards. See EZ Times Table book to see how this works. Continue Reading »

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