CCSS 2.OA.C.3 Worksheets
Grade 2 · Operations & Algebraic Thinking
Decide whether a group of up to 20 objects is odd or even by pairing or counting by twos.
Below are free printable worksheets that support 2.OA.C.3. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
Teach this standard
Deliver a whole lesson on 2.OA.C.3 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Decide whether a group of up to 20 objects is odd or even by pairing or counting by twos.
Count in groups (2s, 5s, 10s) with a number line or hundred chart, highlighting the pattern in the ones digit. Link 5s and 10s to clocks and money.
Generated and checked in code, so it is correct.
Losing the pattern partway, especially crossing tens (e.g. 28, 30 skipped) or reverting to counting by ones.