Kevan Nitzberg sent me a lesson that would work for middle school
(with some minor adaptations) through high school. I got this on line
since it fit in with the theme Power of Words.... Here students find
beauty in two letters of their choice repeated in a relief sculpture.
I did a similar lesson with 7th grade many moons ago using numbers (so
I know they can do this, too). I did allow my 7th graders to use
number templates that I had.... or they could draw their own numbers.