Educational device for teaching the severely mentally retarded

摘要

This educational device has been specifically developed so that a severely mentally disabled person can build simple and compound machines that are used in the teaching of basic mechanics.P PThe four elements- building units, linkages, connector-strips and a special supporting base called a linkage-box, are capable of being united even though the disabled person may also have severe physical disabilties in hand and arm movements.PPAs the machines are built, the disabled person is also having a three dimensional real life experience with concepts such as, "force", "weight", "mechanical advantage", pulley, wheel, axle, velocity, rotation, directionality and cause and effect relationships.P PThe knowledge and skills developed can also find practical application in the vocational, residential and recreational settings.