It sounds like the "bored" under-achiever "natives" are leaving the comments that hurt you, not the immigrants? Punks :-) Can you smile at that word, remember when you were that age and have a little compassion for them? That would help me, remembering when I was struggling at a young age and trying to be "cool" (or
"kewl," however one spells it these days :-)

I found this, maybe some ideas (it's for a chemistry curriculum but perhaps you can adapt to your needs)? http://www.calstatela.edu/dept/chem/...ctive/main.htm

Here's about your "clicker," sounds neat: http://www.vanderbilt.edu/cft/resour...nology/crs.htm