So...I teach 3rd through 6th grade with 3 different co-teachers. I see each class only once a week and my CTs see them twice more on their own. Here's the deal - they watch me teach every week, day in, day out. I'm constantly being observed (in my class, I lead, they assist). They see my activities, my behavior management style, my games, everything...fine. I asked each one individually if I could go observe them to get a feel for how the students are when they're not with me, to see (just for personal/professional development) what others do that's more/less effective, and also to get additional ideas for activities. And they said they would feel too uncomortable, that being observed makes them nervous. In other words, no.
I'm fully aware that they use my ideas/games/activities in their classrooms, which I'd be completely comfortable with if: (1) they wouldn't tell other teachers that it's their work or idea; (2) they would share resources with me in return; and (3 - the biggest one for me) they wouldn't use them first with a class that hasn't had a chance to play my game/do my activity with me. That REALLY bugs me.
Second week of class I had a sticker chart ready to tape into my students' books. I had shown the 5th grade teacher my chart the week before. As I open the students' books to tape my chart in, I see another sticker chart that looks almost identical to the one I made! I feel she could've told me she'd be using a similar system or something...she beat me to the punch and that really got to me. But whatever. A couple of weeks later, I gave her a preview of an activity I would be doing with the students. When the 5th graders got to me and I start to show them, they KNEW IT ALL! She showed them the day before! And no, it wasn't a misunderstanding, it was a cheeky move. But I digress...
I feel it would be beneficial for me to observe others, as that's the kind of teaching environment I'm accustomed to. I think their excuses are just that - lame-o excuses. One friend suggested I just pop in to observe, not giving any notice. I mean, they watch me, why the hesitation? Or maybe they don't want to get busted for using my activities ('cause they think I don't know, but let's be real).
What should I do?
[MOD EDIT: Changed title]