Multiple means of representation is a fundamental principle of Universal Design for Learning. As of today, there’s a promising new free option for presenting information in a wide variety of ways.
knowmia offers an extensive collection of curated videos that have been vetted by teachers for quality and accuracy. knowmia has launched with 7,000 videos organized under the main headings of English, Mathematics, Science, Social Studies, Technology, and World Languages. I suspect that the collection will grow rapidly as users are encouraged to contribute. To start with, most of the content is drawn from Youtube and Vimeo.
The other side of knowmia is a free iPad app that appears to be a powerful and extremely flexible tool for creating video lessons for upload to knowmia’s collection. Clearly, a great deal of thought has been invested in the app. You can do almost anything with it, and the app comes with effective tutorial support. Hopefully, an Android option will be available soon.
The screenshot below shows one screen of the built in tutorial for creating with knowmia. It also shows the interface for the tool.