DISCREPANT EVENT

When we do a DE in Science Methods, we generally end the demonstration by saying something like "What's going on here?" It's meant to make the students think deeply and  look for the thing we're not telling them.  So here goes.......

The other day I saw a classroom that contained 2 teachers, 40 laptops , 80 clickers and about 14 students.  A few years ago I volunteered in a classroom that had a smart board, 5 computers and 3 students.  What's going on here?