"could be useful for teachers and students to find short video lectures and demonstrations to supplement classroom instruction. The videos could be helpful for students who need a quick tutorial when they get stumped on a homework assignment."
"a promising iPad app for teachers who are working in 1:1 iPad environments. I particularly like the option to project students' responses in aggregate without revealing individual names. That feature could be useful for prompting discussions about the questions and materials you've presented to your students."