Last year I told students my name( well, it was on the report card) , my daughter's name, my clothing size, where I shopped, my hobbies, where I taught last year. That's it. I did not think much of it but then I and my 6-year-old started getting facebook friend requests. Students must have also looked up my phone number because I got a few crank calls. My question is how much should you share with your students? I know some teachers share nothing, but that doesn't help build rapport.