When I tutored elementary school math, one of my favorite things to show the kids was how to multiply by 9 using their fingers. (I apologize, but this trick assumes that you have five fingers on each hand...
I recently finished the excellent book Math on Trial by Leila Schneps and Coralie Colmez. In it, the authors collect examples where statistical errors have possibly altered the outcome of trials...
Zombies. They’re everywhere. My dentist and his assistant spent my last visit and chatting about The Walking Dead while drilling into my head, and it seems like every reasonably large town hosts a zombie run...
Welcome to the 103rd Carnival of Mathematics! The number 103 is prime, and it’s the “older” twin of a pair of twin primes as well—or is it the “younger” twin because it comes later?...
This is the second in a series of interviews I have been doing for the Association for Women in Mathematics. (You can read my first interview, with dynamicists Laura DeMarco and Amie Wilkinson, here.) In my interviews, I’m “listening in” on a conversation between two women mathematicians...
The dissonance between the mathematical and plain English meanings of terms can prove challenging for students
The Carnival of Mathematics is a monthly blogging round-up of fun math-related blog posts organized by the friendly folks of the Aperiodical.
Haversine? Exsecant? An introduction to obsolete trig functions and why we don't use them anymore
This is a guest post from Lillian Pierce, who has been doing an interview series for the Association for Women in Mathematics. Her series has focused on women who are balancing motherhood with their mathematical careers...
It’s food week here on the Scientific American blog network. Food is a really important part of our health, and there’s a lot to learn about the science of food: taste, health, agriculture, how we eat...
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