Each month, elementary school teachers receive a problem along with suggested instructional notes and are asked to use the problem in their own classrooms and report solutions, strategies, reflections, and misconceptions to the journal audience. This month's problem integrates two areas: Students must consider the properties of rectangles, rhombuses, and squares in the context of reflecting shapes. A whole-class discussion during which students share their solutions and ideas is a crucial component of the task, allowing students to further develop and solidify their understanding of the underlying geometric concepts.