29 people have favorited this lesson!

2.OA.3 Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

Log in to view this lesson. If you do not have an account, subscribe now and begin your free 30 day trial.

StepUP Math Sample - Grade 2