Lesson Plan Industry Sector
Transportation

## **Circuits (updated) By Richie Rizzonelli

### Lesson Plan Overview / Details

This lesson will explore the theory and purpose of a series, parallel, and series-parallel (combination) circuits.

Classroom/Lab
3 Days

### Objectives /Goals

Students will learn how to create series, parallel & compound circuits.

### Activities in this Lesson

• I take a picture of a wiring diagram and project it on the screen.  Then, I will demonstrate how to read a wiring diagram. I will utilize the overhead projector to show a series circuit, a parallel circuit, and a combination circuit. I will discuss how the circuit is made and the components necessary to make the circuit work. The circuits will include power, ground, switch, and a load. All of these items will need to be assembled to make the circuit function properly.

During this session, I will ask the students to follow along by drawing each diagram to use as their reference when they build their circuits. I will inform the students to pay attention because they will be given the opportunity to build these circuits and need to make them function properly. I will have the students in small groups of three or four to brainstorm and utilize critical thinking and problem solving skills to accomplish these tasks.

• series circuit - Lab / Shop

The students will build a series circuit on an electrical trainer breadboard (GM SET) utilizing jumper wires, light bulb, switch, and a horn. At this point I inform the students that a series circuit will only have one path for current flow. If any one of the items fail, the entire circuit will go into "open circuit" and not function.

• parallel circuit - Lab / Shop

The students will refer to their diagrams to build parallel circuit on an on electrical trainer breadboard (GM SET ) utilizing jumper wires, three light bulbs, and a switch. I remind them that a parallel circuit has more than one path for current flow and to keep this in mind.

• The students will refer to their diagrams to build a compound circuit on an electrical trainer (GM SET) and utilize a rheostat and three bulbs. I will tell them that this type of circuit is a combination of a series and a parallel circuit.

• When the students are done with each type of circuit, we will discuss what they have learned through this exercise. I will tell them that they will have additional time the next day to build more circuits and that they can get creative with the different electrical components.

### Assessment

Teacher will monitor students progress while they attempt to build the different circuits and answer any questions that may arise.

### Materials/Resources

No resources are included, yet.