This issue reviews the assembly of a basic circuit with an LED and push button. We compare the use of a push button and a switch in the same circuit. The lesson emphasizes how closed circuits work and the flow of current through a circuit. The circuit uses a resistor to limit the amount of current flowing through the LED. The resistor demonstrates how we limit the flow of current through a circuit. Students understand that current is something that flows through a circuit event if we can’t see it flowing. There is an animation below that shows how current flows through our basic LED circuit. I used an app to create the circuit simulator.
Tinkercad is a free online service with applications for designing 3D models and electronic circuits. The circuit simulator has basic electronic components for assembling a variety of circuits. The simulator provides a way for us to integrate lessons on electricity. Students assemble circuits in a structured environment. The simulator is easy to use and appropriate for students of all ages.
3D printing was created to develop rapid prototypes. Prototypes are models of a finished product. The printed object itself is not the finished product. Printed objects are not durable enough for commercial use. But, they are durable enough to teach several concepts. Math and science models are two examples for content integration.