The light bulbs go off like strobes.
But as President Crow addresses the 70,000 plus audience here, I can imagine the other light bulbs go off. He gave a huge shout out to K-12 teachers, and I can see how this resonates with Obama as he reaches out to get a ground-up movement going to fix education.
Watch the Blueprint for Education video on this site! It is the speech where he says “if you want to make your mark, with a legacy that will endure, then join the teaching profession.”