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 Skip counting or word skipping? June 25, 2017
 Numicon – combining geometry and arithmetic June 22, 2017
 Discussing the meaning of “almost” with an 8 year old June 2, 2017
 From mathhater to mathematician and computer scientist: The story of Allison Bishop June 1, 2017
 A number talk that turned into an investigation May 26, 2017
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Tag Archives: puzzles
Dots in a Square from Math Without Words
Recently, my third grade class and I have fallen in love with Math Without Words by James Tanton. This is a delightful collection of math puzzles, ranging in difficulty from fairly easy to quite hard, but all mathematically beautiful. Occasionally, … Continue reading
Fun Math Festival
[This is a guest post made by my sister, Yulia Shpilman, about the awesome math festival that she organized last weekend.] So I finally did it! I organized a math festival (thank you to Jane Kats for her inspiration and … Continue reading
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Tagged fun math, games, math festival, math play, mathematical art, puzzles, visual math, visual puzzles
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Kid in the Machine
A few weeks ago, we had a lesson on one of my favorite topics to have little kids play around with – functions! When covering this topic with little ones, a very important first step is to create a cool … Continue reading
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Tagged class, fun math, function machine, functions, Golden Key Russian School, math play, puzzles
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Katie the logician
Yesterday, Katie came up with her own, consistent logic puzzle! This is how it happened (with the puzzle, of course). I was flipping through Alice in PuzzleLand by Raymond Smullyan, which had just arrived in the mail. Naturally, she asked … Continue reading
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Tagged #tmwyk, 6 years old, books, learning from kids, logic, puzzles, story math
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Counting Rectangles
This week we continued playing with rectangles, but this time we were counting them. This can be more tricky than it sounds. I started the lesson by drawing a single rectangle on the board. The kids all agreed that there … Continue reading
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Tagged class, combinatorics, fun math, geometry, Golden Key Russian School, puzzles
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Pentaminoes
Last Sunday at the Golden Key Russian School, we did a fun and engaging activity involving pentaminoes. Pentaminoes are shapes made out of five squares connected along edges. There are 12 of them up to rotations and reflections: These shapes … Continue reading