The focus of Discover is to introduce the language related to weight. Using two familiar items, the children are asked to predict which one is heavier. In this representation, the bigger item is heavier, and both items are made of the same material.
The focus of Share is to introduce the children to using balance scales to compare weight. These help the children to see that the truck is heavier because it has moved the pan on the scales downwards. Reinforce the key language of heavy, heavier, heaviest, light, lighter and lightest and provide stem sentences to support children: The ___ is heavier than the ___. The ___ is lighter than the ___.