Let's use Today'sMeet for back channel. 

Prezi App for iPad- Create, edit, present, or share your ideas
Prezi Viewer for iPhone- View or present a Prezi with an iPhone, iPod Touch or iPad

Here is a wonderful Prezi that creatively shares the potential to present your ideas in a more engaging way. 

Ideas for Classroom Use
Create a Presentation
Present a historical, personal, biographical, time line with videos and pictures
Present your ideas
How To
Introduce Faculty or a Classroom
Map of the classroom
Map of Campus
Brain Storm Ideas