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Grade 1 - Number

Standard 1.N.3 - Count the objects from 1 to 20. Split the number into tens and ones to complete the equation.

Included Skills:

Demonstrate an understanding of counting by:
indicating that the last number said identifies “how many”
showing that any set has only one count
using the counting on strategy
using parts or equal groups to count sets.

Achievement Indicators
- Answer the question, “How many are in the set?” using the last number counted in a given set.
- Identify and correct counting errors in a given counting sequence.
- Show that the count of the number of objects in a given set does not change regardless of the order in which the objects are counted.
- Count the number of objects in a given set, rearrange the objects, predict the new count and recount to verify the prediction.
- Determine the total number of objects in a given set, starting from a known quantity and counting on.
- Count quantity using groups of 2s, 5s or 10s and counting on.

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