ABSTRACT
Teaching Doubles is an important strategy because it lays the foundation for additional strategies that allow students to acquire a larger collection of facts. When introducing doubles, begin with doubles facts 0 to 5 and then 6 to 9. This helps to break up the teaching of doubles and build a scaffold for learning. The Doubles Plus 1 strategy is the next step in the progression of learning. Once students demonstrate a solid understanding of their doubles facts, it is easy to make a connection to the Doubles Plus 1 facts. Doubles Plus 2 is one of the last strategies that students learn. In order for students to acquire facts using this strategy, they have to possess a strong foundation in Doubles and Doubles Plus 1. Students should be encouraged to make discoveries in the patterns of this collection of facts and make connections to prior learning.
