Electricity — Year 4 Lesson Plan
National Curriculum: Science — Electricity: Year 4
Overview
Pupils investigate simple electrical circuits, learning to construct a complete circuit and identify what happens when a component is missing or broken. They explore which materials are conductors or insulators and begin to understand the effect of adding components on the brightness of a bulb.
Learning Objectives
- Identify the components needed for a simple circuit to work.
- Construct a simple series circuit using a range of components.
- Distinguish between electrical conductors and insulators.
- Predict and test what happens when components are added or removed.
Key Vocabulary
Suggested Lesson Structure
Show a battery, bulb, and wire. Ask: can you make the bulb light up using just these three things? Allow exploration. Discuss: what did you need to do to make it work?
Introduce circuit components and the need for a complete circuit. Draw simple circuit diagrams. Explain conductors and insulators using examples. Demonstrate the effect of a gap in the circuit and the role of a switch.
Pupils build a simple circuit with a bulb and switch. Then test a range of materials to classify as conductors or insulators. Record predictions and results in a table.
Pupils draw the circuit diagram for their circuit using standard symbols. Then predict: what would happen if you added a second bulb? Add it and observe.
Why does a dimmer switch work? Pupils apply understanding that resistance in a circuit affects brightness. Introduce the idea that adding more bulbs or longer wires increases resistance.
Common Misconceptions
- Pupils often think that electricity is 'used up' by a bulb — electricity flows continuously around a complete circuit.
- Believing that a switch stops the electricity — a switch creates a gap in the circuit, preventing flow.
Prior Knowledge
Pupils should already be able to:
- Ability to name common appliances that use electricity.
- Basic awareness of electrical safety.
- Some experience of simple circuit components from earlier years.
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