Begin with a brief discussion on how gears are used in everyday objects like bicycles and cars to capture students' interest.

Introduce the basic concept of gears as simple machines that change the direction and magnitude of force.

Explain the structure and function of gears, highlighting how they consist of interlocking wheels with teeth.

Use the video 'Simple Machines – Gears' to demonstrate how gears change direction and multiply force or speed in various applications.

Explore real-world applications of gears in devices such as bicycles and motor vehicles.

Discuss how gear size impacts speed and force, using practical examples.

Engage students in a hands-on activity where they build a simple gear system using everyday materials.

Use the 'Investigating Gears' assessment to guide students through predicting and observing gear movements.

Have students identify and draw examples of gears in their environment, explaining their function.

Conduct a class discussion to review key concepts and address any misconceptions about gears.

Use the 'Simple Machines' assessment to evaluate students' understanding of how gears function as simple machines.

Ask students to reflect on how gears make tasks easier and more efficient in various devices.

Administer the 'Review – Work and Simple Machines' assessment to test students' comprehension of gears and other simple machines.

Encourage students to explore further by designing a simple machine that incorporates gears to solve a problem.