We've been schooled

Today my husband was attempting to use the iPad to look up his assignments for his grad class this week. I had noticed when I had picked it up the other day that there didn't seem to be as many apps as before, but since I don't use 95% of them, I didn't particularly care. As my husband was using the iPad today he asks me if I have grouped the apps. I replied that I had not, but noticed they seemed to be gone. Apparently they are not actually gone, but you must now open the "group" of apps in order to get to some of them. When we realized that neither he nor I had done this, we realized that it must have been one of the children. We called them all together and explained that they were not in trouble (although they have been told they are not to be making any changes to the iPad settings, and several of them are "locked" by a user code) but we were wondering who had grouped our apps. HT proudly spoke up, and the proceeded to show us how to do it! With the technological ability of my children these days, I'm starting to really feel my age!!!!!