true test of stamina. the weekly practices and focus training at the pizza restaurant paid off. [ applause ] >> hershey high takes on the team championship and tuan wins second in the individual competition. a great showing for the 10 rd grader. >> in my brain, i'm like yes, i did it. like i actually did it. and the overwhelming part of my brain is like i want to sleep. >> it's a proud moment for kol let as well who will continue to push to put the memory techniques into the classroom. >> they're all good. le generation after generation. >> so the kids pass their test. and back at the swan house in h atlanta, it's time to see if if we can remember those five u.s. presidents in order. no cheating. >> all right. so, let's start. this is -- i would have never remembered what i'm about to hopefully recall. without this. i'll say that for sure.