This is a great companion activity to my Quadrilaterals: Venn Diagram. Students will compare the attributes at the top of each column and find the shapes that belong in that category. They will cut out the shapes and place them under the correct heading or headings. There are two sorting grids: one that has the attribute list already on the sheet and a second on that requires students to cut out the attribute list first, place it in the correct column, and then cut out and sort the shapes.