Stained Glass Shapes Math Geometry Project - International Dot Day (all starts with drawing dots). Use this colorful lesson to engage your students and practice 2D shapes drawing, measuring with a ruler, area & perimeter calculations, measuring angles, naming types of angles and types of triangles. It can be differentiated to your grade level in math depending on the version you choose.This product includes editable & printable DOC versions of (look at the preview to check all pages):2D shapes