This as-told-to essay is based on a conversation with Deidre Kelly. It has been edited for length and clarity. This is my 14th year teaching sixth-grade math, and I enjoy it just as much as I did when ...

Goldbach’s conjecture sounds almost too simple: every even number greater than two should be the sum of two primes. Mathematicians have chased it for nearly 300 years, a publisher once offered $1 ...

Add Yahoo as a preferred source to see more of our stories on Google. Deidre Kelly is a mom of three and has taught 6th-grade math for 14 years. She turned to TikTok to keep her students engaged ...