Science · Secondary 1

Active learning ideas

Magnets and Magnetic Fields

Active learning transforms abstract magnetic forces into visible interactions, making invisible fields tangible through hands-on exploration. Students need to physically manipulate materials to grasp how poles interact and fields form, which builds lasting understanding beyond textbook descriptions.

• MOE Syllabus Outcomes
• MOE: Magnets and Magnetic Fields - S1

• 20–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Stations Rotation
• 40 min · Small Groups

Stations Rotation: Magnet Pole Interactions

Prepare stations with pairs of bar magnets, labeled poles. Students test attractions and repulsions, sketch results, and predict outcomes for new setups. Rotate groups every 10 minutes to compare notes.

Explain the properties of permanent magnets and electromagnets.

Facilitation Tip

During Magnet Pole Interactions, set up stations with labeled poles so students can rotate through tests without crowding the materials.

What to look for

Provide students with two bar magnets. Ask them to arrange the magnets in three different ways, drawing the resulting pattern of attraction or repulsion in their notebooks. Then, ask: 'What do your drawings tell you about how magnetic poles interact?'

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

Activity 02

• Experiential Learning
• 30 min · Pairs

Inquiry Lab: Mapping Fields with Iron Filings

Sprinkle iron filings around various magnets on white paper; gently tap to align patterns. Students draw field lines, noting density near poles. Discuss differences between magnet shapes.

Map the magnetic field lines around different types of magnets.

Facilitation Tip

For Mapping Fields with Iron Filings, place a small petri dish over each magnet to contain the filings and prevent spills.

What to look for

On an index card, students should draw the magnetic field lines around a bar magnet and label the North and South poles. They should also write one sentence explaining the difference between a permanent magnet and an electromagnet.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 03

• Experiential Learning
• 45 min · Small Groups

Build and Test: Simple Electromagnets

Wind wire around nails, connect to batteries, and test pickup strength with paperclips. Vary coils or current; record data in tables. Compare to permanent magnets.

Predict the interaction between magnetic poles.

Facilitation Tip

When students Build and Test Simple Electromagnets, provide identical nails and insulated wire so variables are controlled in their comparisons.

What to look for

Pose the question: 'Imagine you have a compass and a bar magnet. How could you use them to identify the North and South poles of the magnet without any labels?' Facilitate a class discussion on how magnetic field lines indicate pole direction.

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Activity 04

• Experiential Learning
• 20 min · Whole Class

Whole Class Demo: Compass Field Plotting

Use a compass to trace field lines around a bar magnet on large paper. Class votes on predictions first, then observes and annotates paths together.

Explain the properties of permanent magnets and electromagnets.

Facilitation Tip

For Compass Field Plotting, dim the lights temporarily to make compass needles easier to see as students trace field lines.

What to look for

Provide students with two bar magnets. Ask them to arrange the magnets in three different ways, drawing the resulting pattern of attraction or repulsion in their notebooks. Then, ask: 'What do your drawings tell you about how magnetic poles interact?'

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

A few notes on teaching this unit

Teaching magnetism works best when students experience the forces firsthand before formalizing explanations. Avoid starting with definitions; instead, let exploration reveal patterns, then introduce vocabulary like poles and fields. Research shows that students grasp repulsion and attraction more deeply after structured trial-and-error testing with magnets.

Students will confidently predict and explain magnetic behaviors, accurately map field lines, and distinguish permanent magnets from electromagnets with evidence from their investigations. They will use observations to correct common misconceptions about magnetism and electric currents.

---

Watch Out for These Misconceptions

• During Magnet Pole Interactions, watch for students assuming all metals stick to magnets.

  Provide trays of metal samples during station rotation and ask students to sort them into 'sticks' and 'does not stick' groups, then discuss why only iron, steel, nickel, and cobalt respond.

• During Mapping Fields with Iron Filings, watch for students drawing straight lines between poles to represent the field.

  Have students trace the actual curved patterns they observe with a marker on paper under each magnet, then compare their drawings to confirm the loop model.

• During Build and Test Simple Electromagnets, watch for students believing the magnet works without a battery.

  Ask students to document their electromagnet's behavior before and after connecting the battery, then discuss why the field disappears when current stops to reinforce the cause-effect relationship.

---

Methods used in this brief

• Stations Rotation
• Experiential Learning