Unit 4, Lesson 6
Division as an Unknown Factor
Grade 3
Preparation
Lesson Narrative
Previously, students learned to interpret and write division expressions. They connected division to multiplication informally, recognizing that both operations involved equal groups. In this lesson, students analyze related multiplication and division equations to formalize the relationship between multiplication and division. In the Lesson Synthesis, students learn that the result in a division equation is called a quotient.
- Engagement
- MLR7
- Interpret (orally) a multiplication equation with an unknown factor and a division equation that represent the same word problem.
- Represent division situations with drawings or diagrams, multiplication equations, and division equations. Describe (orally) the relationships between the representations.
- Let’s connect division equations to multiplication equations.
Required Preparation
None
Teacher Reflection Questions
In this lesson, students formally relate multiplication and division for the first time. How is their previous knowledge of multiplication and division supporting them in understanding this relationship?