Tag Archives: similarity

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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The Number Plane

Posted on July 25, 2012 by

If you’ve got an adventurous spirit and are happy not knowing where things may be going, I suggest skipping the blue paragraph and going straight to The Number Line. We present a geometric approach to introducing complex numbers. The approach … Continue reading →

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Similarity Simplifies

Posted on September 12, 2011 by

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 →

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Circles, Squares, and Parabolas

Posted on August 24, 2011 by

If you take two circles, you can position them before your right eye in such a way that one will perfectly overlap the other. In other words, a circle is geometrically similar to all other circles. The same is true … Continue reading →

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