This is a sort involving math. There are 7 pages the students can cut out to sort into 2d and 3d shapes. This falls under common core math standard K.G.3 I can describe shapes as flat or solid. This can be used in a math center. This is a Kinder standard, but it can also be used in Pre-K or 1st grade. There are two pages to paste images onto that are either color coded to sort or coded by their border.