This is an exceptional review activity for 4th graders to address geometry standards 4.G.1 and 4.G.2. This could also easily be adapted to address 3rd-6th grade geometry standards. Essentially students use a ruler and follow along as the teacher reviews ideas such as right angles, types of triangles, parallel lines, perpendicular lines, parallelograms, acute and obtuse angles and so forth. After creating the lines and segments, students use oil pastels (or crayons, paint, etc) to color in the different areas of their design. As an extension, a "geometric art discussion" page is included with sentence stems to get kids talking about the terms with a partner or at home. The lesson plans included will make this project seamless, even for those with minimal art instruction experience.