Provide your child with an early start to understanding geometric concepts! Angles Dominoes includes 28 thick plastic dominoes that have non-matching blocks, one side contains an angle measurement and the other has a geometric shape with an angle measurement that needs to be calculated. Your youngster will learn the rules of calculating angles and what different angles look like as they pair up matching dominoes. The set is packaged in a handy collectors tin for storage. Children will love the feel of real dominoes as they learn foundational concepts of geometry in a fun and engaging way. 28 plastic pieces. Ages 7 and up.