- A Counting Puzzle Raffle – Solution
- Girls’ Angle Bulletin, Volume 6, Number 4
- A Counting Puzzle Raffle
- The Pythagorean Theorem: Is It Proven?
- Back to Basics: Equation Manipulation
- Girls’ Angle Bulletin, Volume 6, Number 3
- Calculator Addiction
- Cook up some math with Julia Child
- Interview with the Institute of Mathematical Sciences in Madrid
- Girls’ Angle Bulletin, Volume 6, Number 2
- Happy 2013!
- SUMiT 2013
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- December 2011 (4)
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Monthly Archives: October 2011
The latest issue of the Girls’ Angle Bulletin has just been posted.
Recently, both Hewlett Packard and IBM named women as their Chief Executive Officers. To celebrate, here’s a puzzle for you. All I’ll say is that the puzzle was designed this past summer. (Part of the puzzle is to figure out … Continue reading
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 ?
I sometimes get science educator envy. I watch them convey ideas with hatching chickadees, snapping plants, fiery explosions, counter-intuitive gyroscopic dances, color-changing liquids, erupting volcanoes, whirling water spouts, sizzling arcs, glistening gems,
Here’s a math problem for anyone who loves circles.
Tonight was the 4th annual Girls’ Angle Chocolate Soiree. Many thanks to the Department of Earth and Planetary Sciences at MIT for allowing us to use their beautiful ninth floor space to host the event. In addition to the chocolate … Continue reading
Timothy Gowers, the mathematician who compiled the incredible Princeton Companion to Mathematics, has begun a series of blog posts directed toward students who aspire to become mathematicians. It’s really quite amazing!
In Hana Kitasei and Tim Reckart’s animated video, Summer Vacation, Angela says that stereographic projection preserves angles. Here’s a proof.
Scramble the Angle in “Girls’ Angle,” add an “A,” and get a girl named Angela. That’s what Hana and Tim did to create Girls’ Angle’s first animated math mentor. She wears an “A” on her shirt, or is that a … Continue reading