The instructor informs children that proportion tells the relative size (larger, smaller, equivalent) of objects.

The instructor asks children to compare the sizes of:

• The apple and the baseball in A.
• The cherry and the apple in B.
• The hat and the apple in C.
• The wheelbarrow and the apple in D.

The instructor:

• Places on a whiteboard or large piece of paper a baseball, a cherry, a hat, and a wheelbarrow.
• Asks children to place an apple by the side of each.
• Places on a whiteboard or large piece of paper a pear, a spider, a cap and a chair.
• Asks children to place an apple by the side of each.
• Places on a whiteboard or large piece of paper a potato, a radish, a pumpkin, and a haycock.
• Asks children to place an apple by the side of each.