This Fluency Activity is a part of the Lesson 7, Unit 5, Grade K. Extending the counting sequence on partners' fingers prepares students to model teen numbers as 10 ones and some ones. Partners hover their hands as if playing the piano. Student on the teacher's right begins by "playing" the pinky of the left hand and continuing from left to right. Once a finger is counted, it remains down on the keyboard. If students working below grade level have difficulties with the Application Problem, pair them with a partner or put them in a small group to solve the problem.