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 Marion Walter’s Theorem Via Mass Points
 Girls’ Angle Bulletin, Volume 7, Number 5
 Cubes in onepoint perspective
 Girls’ Angle Bulletin, Volume 7, Number 4
 Girls’ Angle Bulletin, Volume 7, Number 3
 Intuiting the Chain Rule
 WIM Video: Pick’s Theorem
 Do you believe this?
 Happy New Year!
 Girls’ Angle Bulletin, Volume 7, Number 2
 2013 AIME 2 Problem 10
 Girls’ Angle Bulletin, Volume 7, Number 1
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Happy New Year!
How many dots are in the base?
Hidden Math Crossword
(The contest is now closed. Congratulations to Rebecca W. and Carly R. Rebecca will receive an Intel web computer and Carly will receive chocolate from L. A. Burdick. Thanks to all who tried this crossword. We hope it was enjoyable.) … Continue reading
A Counting Puzzle Raffle
(Added May 1, 2013: This puzzle raffle is now closed. Many thanks to all who participated. Here’s a solution.) Last month, Girls’ Angle affiliates Rediet Abebe, Jordan Downey, and Lauren McGough hosted a mathophile raffle contest at the Girls’ Angle … Continue reading
Happy 2013!
We’re about to enter a triple of triples! That is to say, 2013, 2014, and 2015 are 3 consecutive numbers that are a product of 3 distinct prime factors. 2013 = 3 × 11 × 61 2014 = 2 × 19 × 53 2015 … Continue reading
Math is an Art, but need not be a Performance Art
It’s a genuine feeling of inferiority. I detect it in students who aren’t the fastest to solve the problem. It’s a genuine feeling, but not a genuine inferiority.
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OneFold Origami Puzzle Raffle – Solution
Congratulations to Philip H. for winning the OneFold Origami Puzzle Raffle! Many thanks to all who participated! Here is Philip’s solution:
Mental Madness at Math Prize for Girls
Tonight was the glorious Math Games Night at Math Prize for Girls. This year, the event took place in the stunning tenth floor of the Microsoft NERD Center. There were activities of all shapes and sizes: modular origami, traditional games, … Continue reading
OneFold Origami Puzzle Raffle
This raffle is closed. Congratulations to Philip H. for being selected the lucky winner. Many thanks to all who participated! Here’s a chance for you for some chocolate from L. A. Burdick!
Palindrome Madness: Goodbye 2011, Hello 2012!
Maybe it’s because I’m in the midst of writing hundreds of problems for SUMiT 2012 that I feel like I’m seeing palindromic numbers everywhere! (Even in the date: 12/21…) For those of us born in or before 1991, we’ve lived … Continue reading