Science · Year 6

Active learning ideas

Magnets and Electromagnetism

Active learning helps students visualise magnetic fields that are invisible to the naked eye. When students manipulate materials and observe real-time changes, they internalise abstract concepts like field lines and magnetic forces more effectively than with passive instruction.

• ACARA Content Descriptions
• AC9S6U03

• 30–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Stations Rotation
• 45 min · Small Groups

Inquiry Lab: Electromagnet Construction

Supply batteries, insulated wire, iron nails, and paperclips. Students wrap varying coil numbers around nails, connect to circuits, and test lift capacity by counting paperclips. Groups graph results to identify strength patterns.

Explain how an electric current can generate a magnetic field.

Facilitation Tip

During Inquiry Lab: Electromagnet Construction, remind students to keep coils tight and even for consistent results.

What to look for

Provide students with a diagram of a simple electromagnet. Ask them to label the coil, core, and power source. Then, ask them to write one sentence explaining how to make the electromagnet stronger.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Activity 02

• Stations Rotation
• 30 min · Pairs

Field Mapping: Permanent vs Temporary Magnets

Students sprinkle iron filings around bar magnets and electromagnets on paper, tap gently to reveal field lines, and sketch patterns. Compare shapes and densities between permanent and temporary magnets. Discuss similarities.

Compare the strength of different electromagnets based on their construction.

Facilitation Tip

During Field Mapping: Permanent vs Temporary Magnets, have students sketch their observations immediately after each test to reinforce visual memory.

What to look for

During a hands-on activity, circulate with a checklist. Observe students as they construct their electromagnets. Ask: 'What happens when you add more coils?' or 'How does changing the core affect the magnetism?' Record observations on student progress.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Activity 03

• Stations Rotation
• 50 min · Small Groups

Design Challenge: Electromagnetic Crane

Challenge groups to build an electromagnet arm that lifts and releases metal objects using circuits and cardboard. Test designs, measure max load, and iterate based on failures like weak fields or short circuits.

Design a simple device that uses electromagnetism to perform a task.

Facilitation Tip

During Design Challenge: Electromagnetic Crane, circulate with a timer to ensure groups stay on task and test ideas before finalising designs.

What to look for

Pose the question: 'Imagine you need to design a device to sort magnetic and non-magnetic objects on a conveyor belt. What key components would your device need, and how would electromagnetism help?' Facilitate a brief class discussion where students share their ideas.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Activity 04

• Stations Rotation
• 40 min · Small Groups

Stations Rotation: Magnet Properties

Set up stations for pole identification with compasses, attraction tests on materials, repulsion demos with floating magnets, and basic electromagnets. Groups rotate, record observations, and share findings.

Explain how an electric current can generate a magnetic field.

Facilitation Tip

During Station Rotation: Magnet Properties, provide only one magnet per station to prevent groups from dominating materials.

What to look for

Provide students with a diagram of a simple electromagnet. Ask them to label the coil, core, and power source. Then, ask them to write one sentence explaining how to make the electromagnet stronger.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

A few notes on teaching this unit

Start with hands-on exploration before introducing formal terms. Students need to feel the resistance between poles before explaining attraction and repulsion. Use analogies sparingly; magnetic fields are unique and deserve direct observation. Research shows students often confuse magnetic and electric fields, so emphasise differences early and revisit throughout the unit.

Students will articulate how magnetism and electromagnetism work and justify their designs with evidence. They will use precise vocabulary to explain temporary versus permanent magnetism and troubleshoot variables that affect field strength.

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Watch Out for These Misconceptions

• During Station Rotation: Magnet Properties, watch for students who assume aluminium foil or copper wire will be attracted to magnets.

  Have students test these materials directly at the station and record results in a table, then compare with iron nails to reinforce that only ferromagnetic metals respond.

• During Inquiry Lab: Electromagnet Construction, listen for students who claim electromagnets are always stronger than bar magnets.

  Ask them to build two versions with varying coil turns and compare lifting power using washers, then discuss why strength depends on design rather than magnet type.

• During Field Mapping: Permanent vs Temporary Magnets, observe students who think the magnetic field exists only inside the coil.

  Use iron filings to trace the full field pattern and have students compare it to a bar magnet’s field, prompting a group discussion to correct the misconception.

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Methods used in this brief

• Stations Rotation