To provide a hands-on opportunity for students with visual impairments to build and examine a basic electrical circuit
A series circuit is one in which the electric current follows only one path. An electrical circuit has three main parts: a source such as a battery, wires, and a load such as a radio or a motor. All students do a unit on electricity and circuits at some point in science class. For visually impaired students, many of the same materials and activities can be used. In this activity, the electricity will travel through wires from the battery to the closed switch, through the motor then back to the battery.
Some adaptations and modifications that may assist a student with visual and/or other impairments to build a circuit include using: Velcro to stabilize each component atop a template board with Velcro patches where the components go; traditional single blade switches where the open/close action is more readily observed tactually than other forms of switches; Magna lead wires where the connections at the end of the wires are magnetized and thus easier to connect than standard alligator clips.
Standard electric motors and batteries are generally safe for any student to use.