Category Archives: Contest Math

2012 Math Prize for Girls: #16-20

Posted on October 15, 2012 by

Here are comments and solutions to (some of) the problems on the 2012 Math Prize for Girls contest that took place at MIT on September 22.

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Use Your Mind to Save Yourself Time

Posted on September 18, 2012 by

I’m looking forward to Games Night at the Math Prize for Girls coming up this weekend. I’ve been working with the author of “Mess or Math?” to create a really fun math activity and I hope many of you who … Continue reading →

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2011 Math Prize for Girls: #1-5

Posted on May 5, 2012 by

Here are comments and solutions to problems 1-5 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Earlier I blogged comments and solutions for problems 6-10, problems 11-15, and problems 16-20.

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2011 Math Prize for Girls: #6-10

Posted on April 25, 2012 by

Here are comments and solutions to problems 6-10 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Earlier I blogged comments and solutions for problems 11-15 and problems 16-20.

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2012 AIME 1 Problem #12

Posted on April 15, 2012 by

I was checking out Mess or Math?’s cool blog and her latest post wonders whether problem 12 on the 2012 AIME 1 has a simple solution. Simple is a subjective term. The problem’s setup certainly suggests invoking things like the … Continue reading →

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2011 Math Prize for Girls: #11-15

Posted on March 28, 2012 by

Here are comments and solutions to problems 11-15 on the 2011 Math Prize for Girls contest that took place at MIT on September 17, 2011. Click here for comments and solutions for problems 1-5. Click here for comments and solutions for … Continue reading →

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Back to Basics: Arctangent

Posted on February 3, 2012 by

Recently, a student asked me about problem #8 on the 2008 AIME 1 competition, which is reproduced here for your convenience: Find the positive integer such that . She was able to solve this using the sum of arctangents identity … Continue reading →

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Message to our Members

Posted on November 4, 2011 by

I wrote a message for one of our members, but I’d like to make it available to all our members and any student of math who might be interested, so I adapted it into this blog post.

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Being Receptive- A Quadratic Example

Posted on October 24, 2011 by

A few days ago, I presented some students with this problem from the 2003 AMC 10A (problem #5): Let and denote the solutions of . What is the value of ?

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2011 Math Prize for Girls: #16-20

Posted on October 3, 2011 by

Here are comments and solutions to (some of) the problems on the 2011 Math Prize for Girls contest that took place at MIT on September 17. I’m going to try to resolve the problems in a straightforward, lo-tech way. I might indicate … Continue reading →

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