This Fluency Activity is a part of the Lesson 22, Unit 1, Grade 1. Practicing counting up allows students to maintain fluency with the strategy as it relates to addition. Play Sparkle, counting by twos from 0 to 20. (Refer to game directions in Lesson 7.) While practicing the counting sequence before the game, model the say-think-say skip-counting strategy: say 0, think 1, say 2, think 3.