"One of my favorite units in the Earth Science curriculum is Rocks and Minerals. Students have a real opportunity to get their hands dirty while examining and identifying samples. In the past, the kids have carried clipboards with data tables around the room, checking out various rock and mineral samples, while trying to figure out what exactly they were looking at. At the end of the lesson, I was left with a list of sample names from each student, which I would count as evidence of their lab work. This just didn’t seem to cut it. So this year, I had students bring their iPads around with them. Their task was to, not only identify the samples, but create Keynote slides on each one, including a photo (which they took themselves), the main characteristics of the sample, and the name of the rock or mineral."