Here is a fun activity we are involved with right now. I am teaching about landforms. Kindergarteners are sharing what they know about landforms with their classmates using QR codes, Audioboo recordings, Google Earth, an LCD projector, and our classroom document camera. You can adapt this to any activity all the way up through high school!
If you have any questions about how to do this or have a great idea for how you can adapt this, I'd love to hear from you!!!