It was the 10th grade in high school, it was the first day of the chemistry course. Mr. House, this wonderful man who’d dedicated his life to getting high school students excited about science, came in and said, “We’re going to do an experiment today. I’m going to give you this box, which is painted black, and it has an object inside it and I want you figure out all the ways that you might investigate this to figure out what the object is.” And my initial reaction was, “What a dumb idea!” And then I started to try to come up with a list of the kinds of experiments one could do to determine what’s inside this black box. And I got caught up in it. It was the first time I think that somebody had challenged me to come up with the ideas. I had some exposure to science in previous courses, but it was, “Here’s the facts, learn them.” This was, “Okay, I’m challenging you. Here’s a problem, how would you solve it?” And I knew something was different here.