Continents

Me (Checking in with students working in a group):  "How's it going?"
Student #1:  "Good.  I need to find a better map so I can draw Egypt.  I'm looking for a map of Africa, not South America."
Me:  "Why would you be looking for a map of South America if you are drawing Egypt?"
Student #1:  "Well, one of my group members thought that Egypt was in South America."
(silence)
Me: "So, do you know that Egypt is in Africa, now?"
Student #2:  "Well, yea, now I do."