"Applications for Education
Dedicated PowerPoint and Windows users may find PresentationTube to be a good tool to use in the creation of flipped lessons.
You could have students use Presentation Tube to practice speaking on camera about a topic that they're going to present to their classmates."
"Help your students understand the broad uses of trigonometry as a tool in problem solving. With this lesson students will reinforce their understanding of identifying equivalent trigonometric expressions while also working in small groups that help work on communication skills."