Show your class what goes on with a magnet that can be turned on and off with a resource that provides the information needed to build an electromagnet. The information allows the class to understand that creating loops with the current produces a magnetic field similar to the field of a permanent magnet.

Concepts

electromagnetism, magnetic fields, metals, properties of metals, steel, aluminum, recycling, technology resources

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Instructional Ideas

• Construct different electromagnets before class and demonstrate the difference in their magnetic fields
• Research electromagnets to determine the strongest one built

Classroom Considerations

• The class should have an understanding of electrical currents and the magnetic fields they produce
• The seventh of an eight-part series

Pros

• The resource contains a quiz that covers material from the entire unit
• The lecture information provides hints on how to make an electromagnet

Cons

• The resource does not include an engaging instructional strategy