This Fluency Activity is a part of the Lesson 32, Unit 1, Grade 1. This activity helps students maintain their ability to count by tens, which is foundational to later Grade 1 work with adding and subtracting tens. Remember, the Rekenrek can be used on the first count to help students visualize the numbers as they count forward and backward. Have students count up and down between 20 and 120 the Say Ten way, depending on their skill level (see Lesson 3).