This Fluency Activity is a part of the Lesson 12, Unit 3, Grade K. Observe to see which students erase completely and begin each time from one, rather than draw more or erase some to adjust to the new number. By drawing 5-groups, students see numbers as having length in relationship to the five. Conduct as outlined in Lesson 7. Consider alternating between drawing the 5-groups vertically and drawing them horizontally.