Art Page

Art Detective:

http://www.eduweb.com/pintura/

perspective arches: http://www.artgraphica.net/free-art-lessons/wetcanvas/perspective-drawing-an-arch/perspective-and-art.htm

Tessellations:

http://www.dartmouth.edu/~matc/math5.pattern/lesson7art.html  Escher Art 

http://www.kenston.k12.oh.us/khs/math/tess/MVC-512F.JPG  sample 

http://princetonol.com/groups/iad/lessons/middle/Lessons/6tessell.htm (lesson)

http://www.jimmcneill.com/demo.html  (demo how to make them)