I remember attending a seminar about teacher-development and one of the speakers used this cartoon http://www.youtube.com/watch?v=dMdTBep3W9c What do you think? Could this serve your purpose?
Here are some quotes you could also use, leaving out some words and asking your colleagues to guess:
Fair is not everyone getting the same thing. Fair is everyone getting what they need. -Anonymous.
Most teachers waste their time by asking questions which are intended to discover what a pupil does not know whereas the true art of questioning has for its purpose to discover what the pupil knows or is capable of knowing. - Albert Einstein
The road to success is always under construction. - Arnold Palmer
Never a checklist, always complexity. There is no step-by-step shortcut to transformation. - Michael Fullan
The road to success is always under construction. - Arnold Palmer
It is a curiosity of teaching that no two days are alike, but, if we are not careful, all the days can take on a deadening sameness. We must remember that we have every opportunity to transform ourselves and our practice, just as we have every opportunity to stagnate, remaining much the same teachers we were when we began. - Carol Ann Tomlinson
Not sure if that�s what you have in mind... anyways, please give me some feedback.
