Electricity and Magnetism

Lesson Plan of Electricity and Magnetism

General Science Grade IV

STUDENT ‘S LEARNING OUTCOME

• Make a simple electric circuit.
• Distinguish between open and close electric circuit.

INFORMAATION FOR TEACHER

• Then battery cell, bulb and switch are connected with the help of wires, electric current starts flowing through them. Such a connection of different devices is called   ELECTRIC CIRCUIT.

• When circuit is open when the switch is OFF.
• When circuit is close when the switch is   ON.

                                 MATERIAL REQUIRED

Battery cell, Connecting wires, Torch bulb with holder, Switch, sheet of white paper

   Worm up activity 

• 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 is an electric circuit? 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.

   →   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?

                                                                                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.

   →   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 / HOME WORK

• Prepare a list of electric appliances used in your home.
• In which states are their circuits open or close?