We started with levers and weights and tried to find the relationship between the distance from the fulcrum (pivot point) and the load (weight).

In the next lesson, students were provided the relationship

To balance the lever:
Lever arm A x Load A = Lever arm B x Load B

We recognised the need to review the maths behind using this formula.
8MA levers calcs intro.jpg

We first solved the following by inspection and then using rearrangement and cancelling
8MA levers what's in the box2.jpg
The last example is the set out for the first problem on the Balancing levers worksheet

8MA levers what's in the box2 answer2.jpg

8MA levers what's in the box2 answer.jpg