Balance Builder lets students measure the mass of everyday objects using an equal-arm balance and informal units. They estimate first, then add units until the balance is level, and count to find the mass.
Best for: Foundation to Year 2
How to play
Look at the object and make an estimate of how many units it will take.
Add units to the other side of the balance one at a time.
Stop when the balance is level, then count the units.
Record the mass and compare it with your estimate.
Teaching tips
Use a real balance scale alongside the game so students can feel the difference.
Discuss why the units must all be the same to make a fair measurement.
Try Heavier or Lighter next to compare the mass of two objects.