I’ve been putting together the lecture slide for my course/camp. These are two of the best images that I have come across. The sandbox turtle is the main attraction on one of the slides, but I don’t know if I can find a reason to use the OSI cat model below. We plan on have the kids learn about the network based on the TCP/IP reference model. I came across it though and started laughing in the middle of the hallway at 7:30AM today. The other Camp War Eagle workers were looking at me like I was crazy.