If you've already heard about the "flipped classroom", you can go about your business. If you haven't, I just want to say that I think this might be the thing that completely changes teaching for me. Of everything I've covered as part of my Applied Technology in Education major at Wilmington University, the flipped classroom is the one thing that has intrigued me the most.
Long story short -- you record your "lectures", post them online, and your students watch them from home. Now that you don't have to spend class time giving the lectures, you can do more activities in which students actually apply what they've covered, and you can just guide them along.
Check out Educreations -- it's an interactive whiteboard program (and it's free) that lets you record your voice while you draw/write/demonstrate whatever it is you want to draw/write/demonstrate. For me, it's my way into the flipped classroom.