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Everything Math
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Monthly Archives: September 2011
WIM Video: The Platonic Solids by Emily Peters
Here’s the latest WIM video, featuring MIT postdoctoral fellow Emily Peters discussing the Platonic Solids.
Posted in math, Math Education, WIM videos
Tagged Euler's formula, geometry, math videos, Platonic solids
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Feeling Functions in Your Bones: Arctangent
We have a lot of intuition about the things we do every day. If a mathematical function describes one of these habits, all that intuition applies to understanding the mathematics. Imagine standing at the edge of a road. Perhaps you’re … Continue reading
Posted in math, Math Education
Tagged arctangent, mathematical intuition, trigonometry
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There’s More to Learning Math than Mathematical Aptitude
Ever since I founded Girls’ Angle, I’ve had frequent discussions about gender segregated math education. Here’s an argument I often hear from those opposed: “I believe girls and boys are equally capable at doing mathematics, and, therefore, they should not … Continue reading
Posted in gender issues, Math Education
Tagged girls and math, Girls' Angle, mathematical aptitude
2 Comments
Math and MEMS: More Exponentials
Yesterday, Allyson Hartzell, the Director of Failure Analysis, Test, and Reliability at Pixtronix, Inc., visited Girls’ Angle to tell us about how she uses math in her work. She works with Microelectricomechanical Systems, or MEMS. MEMS are tiny machines. They … Continue reading
Exponential Growth is REALLY Powerful!
Internet traffic, the Richter scale for measuring earthquakes, the spread of disease, our response to brightness, and Intel cofounder Gordon Moore’s Law all involve exponential growth. Exponential growth even applies to noodle making, as I’ll detail below! With all these … Continue reading
Does 0.999… Really Equal 1?
One of the most oftasked questions in K12 math is: Does zero point nine repeating really equal one? Here’s the short answer: Yes! And here’s a longer answer,
Posted in math, Math Education
Tagged 0.9 repeating, decimals, infinite geometric series, limits
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Calculating the Volume of a Regular Tetrahedron
Tonight I joined in on the fun at the Games Night at Math Prize for Girls. Picture a large banquet hall filled with large tables each showcasing a different kind of mathrelated handson activity. Girls came from all over the … Continue reading
Girls do Math: Surprised by the Surprise
I occasionally run into people who seem surprised that girls do math! “You run a math club for girls? I thought math was for boys…”
Similarity Simplifies
When you see that two figures are similar to each other, everything becomes simpler. Suddenly, you realize that if you understand one figure, you know everything about the other, except for its absolute size. I was observing some students solving … Continue reading
Posted in Contest Math, math, Math Education
Tagged geometry, Pythagorean theorem, similarity
1 Comment
Math Accommodates Many Ways of Thinking
Today marks the beginning of Girls’ Angle’s 9th session and fifth year of existence. To celebrate the occasion, I’m blogging about one of the core philosophical principles of Girls’ Angle: Math Accommodates Many Ways of Thinking. In fact, I am … Continue reading