Science teacher Jason Pittman, who teaches pre-school through sixth grade at a school in Fairfax County, Virginia, won a big teaching award this week. In fact, during his ten years teaching, he’s won many, many awards.

David Kestenbaum tells Ira about the time, when he was doing graduate work in physics, he and his other single friends decided to figure out the mathematical probability that they’d find girlfriends. They wanted to know what the chances were that there was more than one person in the world for them.