circuit diagrams utilise special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, insulators, motors, outlet boxes, lights, switches, and other electrical and electronic components are connected together.
We tour schools offering either single project days, or more extended project work over many weeks and combining multidisciplinary work, mainly to students aged 11 to 14. Through the construction of these cars students learn about electrical circuits and how solar energy functions.
Circuits use two forms of electrical power: alternating current (AC) and direct current (DC). AC often powers large appliances and motors and is generated by power stations.
They have been widely used in primary and secondary education (e.g. Duit 1991; de Bóo and Asoko 2000; Asoko and Boo 2001). Analogies are particularly suitable for use in physics (Reiners and Glynn 1995; Kircher and Hauser 1995). They are ideal for teaching principles relating to electricity (Dupin and Johsua 1989, Cosgrove 1995). Students can use analogies to relate with something they are already familiar with and see the similarities between the two systems.