"Not only were students talking about how much having the captions helped them as they took notes, their test scores went up," Collins said. During the first year of a 2-year case study, he showed videos without captions to establish a baseline of student comprehension, then in the second year turned on the captions and began to see improvement in comprehension and grades. "During the baseline year, there were a lot of Cs. In the second years, they went from Cs, Ds and Fs to As, Bs and Cs. It was really significant improvement," he said. "We're living in an