Where does the concepts of odd and even show up in the Common Core?
Second grade. Here is is.
- CCSS.Math.Content.2.OA.C.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
By the end of grade 2, kids should have a solid understanding of the basic concepts of odd and even so they can further develop these ideas as they move through grades 3 and 4 and can start thinking about how they can apply these ideas to help them with arithmetic.
I have a small group of third grader who I have noticed over the last several weeks seem to be struggling with the idea of odd and even. They certainly had some basic knowledge but some of it seemed fragmented or missing or they were very unsure. I found 15 minutes to pull them out of class for a quick booster group to address these big ideas. I want to share with you how we quickly got at what it means for a number to be odd or even, noticed how it extends to numbers beyond 20, and practiced our new found knowledge.
|A finished sort|
This quick review of the ideas of odd and even really seems to have helped these students solidify their knowledge. I followed up by adding some of my favorite odd and even literature books to their book boxes for them to explore during independent reading time this week.
How do you find time and staff in your school to give kids that little extra time or practice they need to be successful? Please respond in the comments below!