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Grade 1 - The Number System

Standard 1.NS.1.3 - Count the objects from 1 to 20. Split the number into tens and ones to complete the equation.

Included Skills:

Students will be expected to demonstrate an understanding of counting to 20 by
indicating that the last number said identifies 'how many'
showing that any set has only one count
using the counting-on strategy

Performance Indicators
- N03.01 Answer the question, How many are in the set? using the last number counted in a given set.
- N03.02 Identify and correct counting errors in a given counting sequence.
- N03.03 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.
- N03.04 Record the number of objects in a set using the numeral symbol.
- N03.05 Determine the total number of objects in a given set, starting from a known quantity and counting on.

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