In these lessons we learn that wheelbarrows, tweezers, and scissors are all different types of lever:
Starting to build a class 1 lever
Collaborating on the class 1 lever build
Making a class 1 lever
The completed class 1 lever
Trying out our model of a class 1 lever
Trying out our model of a class 1 lever
It’s a real class 1 lever (as are the scissors!)
Next the class 2 lever:
A class 2 lever has the load in the middle – between the pivot and the effort
Two examples of class 2 levers
And class 3 levers where the effort is in the the middle between the pivot and the load:
Building a class 3 lever such as a pair of tweezers
Staring to write about the levers we are building
Drawing and writing about the different classes of lever we built
The Troutbeck School 