You can create and present slide shows directly from within Mathematica. Mathematica-based presentations can contain interactive interfaces and live computations, letting your audience see the effects of changes to parameters in real time. Learn more in this "How to" screencast.
Mathematica's slide shows are ideal for use in the classroom and can be leveraged quickly as a lesson or lecture. Any presentation created with Mathematica can display live interactive content that you can alter—and even create—while presenting. Learn more in this "How to" screencast.