Learners explore circuit structure, draw a schematic for it, and construct a two button buzzer model out of wires, a battery, buttons (switches), and a buzzer.

Sound the alarm about a great resource. Scholars first build a simple circuit to learn the basics about electric currents. They then design an alarm system in which a buzzer activates when pressure is applied to a doormat.

This lesson introduces electricity, batteries and motors using a LEGO MINDSTORMS NXT robot. The associated activity guides students to build a simple LEGO NXT set-up and see the practical implementation of the concepts discussed. Before...