Counting Past Ten
With more than ten shapes, counting in groups pays off: circle five shapes, then another five, and count on from ten. The rows make those groups easy to see.
Writing Two-Digit Numbers
Answers from 10 to 20 need two digits in the box. It is a chance to talk about tens and ones: 13 is one ten and three more.
When the Shapes Get Smaller
On a page with six exercises, or with twenty shapes on a shelf, the shapes are drawn smaller so that all of them fit. Every shape on one sheet keeps the same size.