The purpose of this task is for students to determine whether a set of objects (up to 20) has an odd or even number of elements. Students will also write an equation to express an even number as a sum of two equal addends and an odd number as a sum of two equal addends and 1.

Concepts

addition

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Additional Tags

2.oa.c.3, cc by-nc-sa 4.0, creative commons, creative commons attribution-noncommercial-sharealike 4.0, illustrative mathematics, odd/even, even and odd numbers

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice

Common Core

2.OA.C.3 2.OA.C.4 2.G.A.3