Talking safely online

The Common sense media online unit about Internet safety for 4-5th graders stands up.  What are the differences between real-life friends and online-friends?  Can you even know a person's gender?  There are activities for in class work, but I particularly like the assignment portion: go to a chat room with a monitor, see if people post personal information, and report back the following day.  It's a life lesson that can put children on a safe path to cyber living.