This Problem Set is a part of the Lesson 4, Unit 3, Grade K. In this lesson, students work to describe and compare measurable attributes. Previously, students compared length and height of different objects when their endpoints were aligned and not aligned. Students now work to reinforce the importance of the 5-group; they compare multi-unit linking cube sticks to a 5-stick (e.g., "my 4-stick is shorter than my 5-stick").