Topic(s): counting and cardinality

## Purpose

To create groups of two in various configurations.

Tell children that you want them to make groups of two. If there is an odd number of children in class, you might need to participate also so that no one feels left out. After children have paired up once, have them try to create groups of two in a different way.

Part 1 has children make groups of two in one configuration. Part 2 prompts children to create groups of two in a different way. The extension moves to combining two groups of two to make a configuration of 4.

Try to pair up with someone to make a group of two.

*While children are enjoying their building of mastery, feel free to repeat. When children are eager for more, try Part 2.*

Now try make a group of two in a *different *way.

*As always, when children seem excited for a new challenge, move on.*

How could we make groups of four? Try to make a group of four.

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