The push (or touch) switch is the most common type, as the child activates the switch by pushing against the surface of the switch. Push switches are available in a wide range of sizes and shapes, in the type of feedback and in the amount of force a child must use.

Lever switches can be activated by pushing in more than one direction. The leaf and wobble switches are examples of this type of switch. Pushing against or bending the flexible tip in any direction operates these switches. Often mounted near the hands or face/head, they are less rigid than other switches and can be easily mounted.

If a child is unable to make a reliable pushing movement, other switches are designed for different motoric movements. Examples of these are the pull switch, the grasp or grip switch, the pinch switch and the tongue switch. These motor-specific switches are designed for users with focused abilities.

Shown are:

• a chain switch where a child can make any movement that causes the chains to move against the metal bar.

• a String switch is pulled to turn a toy on; it has been modified with a koosh ball to make its target easier to see and grab.

Switch closure can also be the result of a separate activity with the target responding when a separate task is completed. In the photo, when the puzzle is completed, switch closure occurs and the toy that it is connected to turns on.