# Grade K: Counting and Investigating Numbers to 40 (CCSSM Version)

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Concepts

• Represent and Count Sets to 9
• Count Sets to 40
• Count On from a Given Number

Unit includes

• 12 high-level tasks with associated QuickStarts, Practices, Applications, and Quick Writes.
• 2 checkpoints and 4 support activities.
• 1 final performance-based assessment with scoring guide.

Students

• Understand that counting tells how many things are in a set and that the total number of objects in the set is the last number said when all items have been counted.
• Understand that counting includes one-to-one correspondence, regardless of the kind of objects in the set and the order in which they are counted.
• Recognize that the number of objects remains the same in amount despite changes in the location or the size of the objects.
• Understand that each successive number name refers to a quantity that is one larger, because each time a successive number is named, one has been added to the quantity.