This Application Problem is a part of the Lesson 7, Unit 6, Grade K. Thinking about decomposing the rectangle in the problem leads the way to the creation of square puzzles in today's lesson. In this lesson, students cut a square to form simple three-piece puzzles and intuitively use geometric motions such as flips, turns, and slides as they work to solve one another's puzzles. This work is based on an original work of Great Minds and licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.