This math center activity can be printed on cardstock and laminated, and used with a simple classroom balance scale. Each card (2 cards per page) prompts students to weigh two objects in a balance scale and circle the item that is either heavier, or lighter. All objects can be found in any primary classroom! This is a fun, simple, zero-prep, hands-on activity that kids love. It allows students to compare two weights while also paying attention to the key words "more" and "less".