A seesaw -LRB- also known as a teeter-totter or teeter board -RRB- is a long , narrow board suspended in the middle so that , as one end goes up , the other goes down .

A seesaw -LRB- also known as a teeter-totter -RRB- is a long , narrow board which is fixed in the middle , a little way above the ground . When one end of the seesaw goes up the other goes down .
