LEARNING TOOL FOR SEESAW

摘要

PURPOSE: A learning tool using a seesaw is provided to understand a concept of weight through a weight difference of both sides by using a lever as a principle of a seesaw. CONSTITUTION: A supporting plate(10) has a through-hole. A seesaw plate(20) executes a seesaw movement at an upper part of the supporting plate. A moving plate(30) is moved in left and right directions on an upper side of the seesaw plate. A rail unit(26) is formed at an upper side of the seesaw plate. A bottom surface of the rail unit is formed with a concavo-convex part. A movable plate is coupled with the rail unit and includes a protrusion. The supporting plate and the seesaw plate are combined to each other by using a shaft.