Students in Grade Three will begin to explore the role of the distributive property when finding area. They don’t necessarily need to use the term, however, due to the need for precise vocabulary in Math Practice #6, it makes sense to use it a bit. This lesson will focus on the use of the “array within an array” model to make this clear to students.
Before students work with partners or individually on the practice sheets in this set, it makes sense to begin with square tiles on their desk and some teacher modeling of the recording/concept. Lesson notes are included as well as two practice sheets and a modified version.