University of Colorado
University of Colorado: Ph Et Interactive Simulations: Circuit Construction Kit
Build circuits with resistors, light bulbs, batteries, and switches. Take measurements with the realistic ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a life-like view.
Science Education Resource Center at Carleton College
Serc: Investigate Electric Circuits Through Construction and Illustration
In this physics lesson 4th grade learners investigate electrical circuits in greater depth than the FOSS unit used in a prior grade in school. Students become familiar with a computer simulation allowing them greater choices of materials...
Science Struck
Science Struck: Chart of Electrical Symbols With Their Meanings
A useful list of electrical symbols that are used in schematic diagrams. Each symbol is accompanied by its name and a caption stating its function.