How I Use It
I had my students create collages using real-world illustrations of geometric vocabulary terms using another app (not TouchCast). Then students used those collages as the background in a green screen video featuring themselves explaining the vocabulary terms weather-forecast style. The setup was really basic and effective; I used a green plastic tablecloth and thumbtacks on the back wall of my classroom as the green screen, and students recorded their presentation in front of that. Due to the privacy concerns of uploading the completed videos. I recorded all the presentations using my own iPad and stored the videos locally without uploading to TouchCast.
In the future, I would like to explore the possibilities of recording my own lessons using the green screen and the various Vapps available to post for students to watch. Perhaps you will want to pursue this approach.
TouchCast is a unique app that offers so many features, it would be difficult to summarize them in one place. It relies on video apps, or "Vapps", for its niche, but I was drawn to it for another reason: green screen. Quite simply, it is one of the best FREE green screen apps available. I like that you are able to select the color to remove by simply tapping on that color on the iPad screen. But be prepared: users must sign up for a free account, and videos must be uploaded to their server in order to share. Privacy settings may be a concern here. I would love to see an education version that enables small group sharing protected from the public view.