This lesson seemed like a good real life activity for students in that they would be working with a hand-held device. However, a couple elements could use some more thought. I was a bit confused by the intermigling of the instrucotor's part and the student's part. That could just be explained a little more clearly. Also, I think an important element that was missing was how the students/instructors would be assessed. Perhaps after the students came together as a group then they could be led in group feedback.