Lesson Plan of Electricity and Magnetism
Subject General Science
Grade 3rd
Students` learning Outcomes
- Make a simple electric circuit.
- Distinguish between open and close electric circuit.
Information for Teachers
When a battery cell, bulb and switch are connected with the help of wires, electric current starts flowing through them so such a connection of different devices is called ELECTRIC CIRCUIT.
- The circuit is open when the switch is OFF.
- The circuit is close when the switch is ON.
Material / Resources
Writing board, chalk/marker, duster, Battery cell, Connecting wires, Torch bulb with holder, Switch, sheet of white paper
Introduction
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- Ask what do we do when it gets dark?
- How do we turn on a bulb?
- What happens when we press the switch on?
Inform the students that while entering in the home at night, we press a switch and the whole room is lighted. While going out we turn the switch OFF.
- What makes the bulb light up? When turning the switch ON, do we start using electricity?
- Do we also use electricity when we turn off the switch? (No)
- Do you know what an electric circuit is?
Let us perform the following activity to find out about it.
Development
Activity: 1
Give each group a set of materials [Battery cell, connecting wires, switch and bulb].
Ask them to light the bulb by constructing a circuit with the material provided.
Guide the students if they feel any difficulty.
Ask the students to close the switch.
- Does the bulb glow?
- What passes through the wires to make the bulb glow?
Ask the students to open the switch.
- What happens to the bulb?
- Ask, why does the bulb not glow when the switch is open?
Now draw a diagram of electric circuit on the board.
Ask some questions to make the concept of students clear.
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- What made the bulb glow?
- What is the use of battery? [Battery make the bulb glow].
- What is a close circuit?
- What is an open circuit?
- Does the current flow when the circuit is open?
- Does the current flow when the circuit is closed?
Close up / Sum up
Assessment
Make a chart or write down on blackboard for the following questions. Display it on the wall at the end of lesson and will ask the questions verbally.
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- When does a current flow in the circuit?
- What is the basic requirement for the flow of current in the circuit?
- Why does the bulb not glow when the switch is open?
- Does the current flow in the circuit if the switch is open?
- What is the use of the battery?
- What is the function of the connecting wire in the circuit?
Follow up
- Prepare a list of electric appliances used in your home.
- In which states are their circuits open or close?