1Introduce the concept of simple machines and briefly preview each station.
2Divide class into 5 heterogeneous groups and assign starting stations.
3Station procedures (12-15 minutes per rotation):
Station 1 (Levers)
Investigate first, second, and third-class levers using rulers and fulcrums
Test how changing fulcrum position affects effort needed to lift weights
Record observations in science notebooks
Station 2 (Pulleys)
Compare lifting a weight directly vs. using a single pulley vs. using a double pulley
Measure and record the force required for each method
Station 3 (Inclined Planes)
Test how ramp steepness affects the force needed to move an object upward
Time how long it takes a car to roll down ramps of different angles
Station 4 (Wheels & Axles)
Examine different wheel and axle systems
Design a wheel and axle solution for a given transportation problem
Station 5 (Digital)
Use simulation app to build and test virtual simple machines
Complete digital challenge cards at increasing difficulty levels
4Signal rotation with a timer. Allow 1 minute for transition between stations.
5After all rotations, conduct a whole-class discussion comparing the different machines and how they make work easier.
6Final assessment: Have students create a simple machines concept map showing how the different machines are related.