This Fluency Activity is a part of the Lesson 16, Unit 1, Grade 1. A prepared set of bowling pins is a wonderful configuration of 10 (4 in the back, then 3, then 2, then 1). This activity supports students creating compositions of 10 in multiple ways. Show a bird's eye picture of the configuration. Have students look at the arrangement and discuss with a partner how many pins they see and how they know. Share different ways of knowing it is 10.