What kind of challenges can we suggest?

Borrowing again from Project 365 they explain the challenge in this way...

"We here at Project 365 thought it might be neat if we all took a picture of the same thing at some point during the next week. It might help someone get through a tough "I don't want to take another stinkin' picture" moment, it might inspire you to take some other kind of picture, and we think it might be cool to see this same thing seen through the eyes of so many.

So, for the first challenge let's all try to take a picture of:__________________"

Their first challenge was to take a picture of their shoes...I especially like the theme of "through the eyes of many"

David you probably have the most experience in the area
Can you get us started?

I was intrigued by your first post where you said something about "recess/break time". I would call it "playtime" or "interval". I suspect there are a whole lot of other names that are used. But I wonder how different they look? If a number of schools took a picture of recess/break time/playtime/interval would they be very different.

So a first challenge could be:

Take a picture of the time between lessons
As well as the usual tags, use weekone-timebetween

If you don't like that one, what about:

Take a picture of the best place in the school
It could be the library corner, the sports field, the art room, the cafeteria... As well as the usual tags, use weekone-bestplace

I thought it best to start with a fairly concrete challenge. Once people get the hang of it, maybe we could get more adventurous. :-)