My students were twelve and thirteen years old. My job was to help my students learn seventh-grade math: fractions and decimals and the rudimentary building blocks of algebra and geometry. Even that first week, it was obvious that some of my students picked up mathematical concepts more easily than their classmates. Teaching the most talented students in the class was a joy. They were, quite literally, “quick studies.” Without much prompting, they saw the underlying pattern in a series of math problems that less able students struggled to grasp. They’d watch me do a problem once on the board and say, “I get it!” and then work out the next one correctly on their own. And yet, at the end of the first marking period, I was surprised to find that some of these very able students weren’t doing as well as I’d expected. Some did very well, of course. But more than a few of my most talented students were earning lackluster grades or worse. In contrast, several of the students who initially struggled were faring better than I’d expected. These “overachievers” would reliably come to class every day with everything they needed. Instead of playing around and looking out the window, they took notes and asked questions. When they didn’t get something the first time around, they tried again and again, sometimes coming for extra help during their lunch period or during afternoon electives. Their hard work showed in their grades. Apparently, aptitude did not guarantee achievement.