Active learning ideas
This unit explores the invisible forces of magnetism. Students investigate the properties of magnets, including the law of attraction and repulsion between poles. The NCCA curriculum encourages 'Observing' and 'Predicting,' which students apply by mapping magnetic fields using iron filings or compasses. They also learn about the Earth's own magnetic field and how it has been used for navigation throughout history.
Activity 01
Students place a bar magnet under a sheet of paper and sprinkle iron filings on top. They work together to sketch the patterns formed, identifying where the force is strongest.
What materials are attracted to magnets?
Activity 02
Using a bowl of water, a cork, and a magnetized needle, students build a simple compass. They then use their compasses to navigate a simple 'treasure map' in the classroom or school yard.
How do magnetic poles interact with each other?
Activity 03
Students are given a tray of various metal objects. They predict which are magnetic, test them, and then discuss why some metals (like copper coins) are not attracted to magnets.
How does a compass use the Earth's magnetic field?
A few notes on teaching this unit
Watch Out for These Misconceptions
All metals are magnetic.
Only certain metals like iron, nickel, and cobalt are magnetic. Testing aluminum foil or copper wire with a magnet helps students correct this common overgeneralization.
Magnets work by 'sticking' like glue.
Magnetism is a force that acts at a distance. By holding two magnets close without touching, students can feel the force of repulsion or attraction, proving it is a field rather than a surface adhesive.
Methods used in this brief
Electrical Circuits and Conductors
Students construct simple circuits and test various materials for electrical conductivity. They learn about the importance of electrical safety.
8 methodologies
Electromagnetism in Action
Students discover the relationship between electricity and magnetism by building simple electromagnets. They explore real-world applications of electromagnets.
8 methodologies