I make animated lesson videos for my YouTube channel. I'm looking to get greater audience participation through real-time interaction of student while they watch a film, so Camtasia's quiz feature seems helpful. However I want a math problem on screen and to be able to position a small box within the screen so you can still see most of the screen, and the student would type their answer in the box. I don't want to use multiple choice for this. I don't want students to look for a likely answer and guess it, I want them to think it through independently instead. Then they KNOW if they are getting it or not.