Trying to find engaging sites has been a problem. But previewing this geometry connection encourages me not to give up. My students tested this out on Friday and thought it was pretty neat to see all the geometry in art.
The reading level was a tad too complex for 6th graders, so I think it would work best using pairs. The best part of this was to see those students who love art and think they hate math...it was like proposing a whole new area of study to them.