It's the most common name for the structure also called a teeter-totter or a dandle board
... Swings are the most common cause of injury related to 
playground .... A seesaw (also known as a teeter-totter or teeterboard) is a long, 
narrow board... [DOC] [TLE] 5 Strategies for Working With Clients With Co-Occurring Disorders ... [PAR] Finally, counselors should increase structure and support to help their clients with 
COD ...