C Curriculum Explorer
Mathematics·Number Representation & Place Value·conceptual

Odd or Even

Determine whether a group of objects (up to 20) has an odd or even number of members

Suggested ages 7–8

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Learning journey

Your child is mastering larger numbers — learning to read, write, and work with numbers up to 1000 by understanding how hundreds, tens, and ones work together.

Evidence of understanding

  • Pair objects and determine whether there is one left over (odd) or not (even)
  • Count a group by 2s to determine if the total is even
  • Write an equation to express an even number as a sum of two equal addends (e.g. 8 = 4 + 4)

Assessment prompt

If Odd or Even has a group of 14 objects, can they tell you whether that number is odd or even — for example by pairing them up to see if any are left over?

Standards alignment

2.OA.3US · ccss-math

Determine odd or even numbers

Common Core State Standards for Mathematics · 2