We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple third-grade math problem manages to trip us up and make us question our ...

Sharma is CEO and co-founder of Zearn, a nonprofit dedicated to transforming K-8 math education. Sharma is also the author of "Math Mind: The Simple Path of Loving Math," a book that dives into how we ...