Doubles Facts w/in 20 

A doubles fact is when a number is added to itself or doubled, such as 6+6 and 9+9. These facts serve as great building blocks in developing fluency with higher level facts. In first grade students learned the 1-5 doubles facts and now extend those facts in 2nd grade to include the 6-10 doubles facts.  Below is an anchor chart with a list of doubles facts. Have your child share the patterns he notices in the addends and sums. The big take away for many students is that each new sum is just 2 more. Also included below is a doubles song and game to practice at home. Finally, included is an article that explains why learning doubles facts serves as a building block for other facts.