Represent Products as Areas
In previous lessons, students counted unit squares to find the area of rectangles. In this lesson they explicitly connect multiplication to rectangular areas. Students match multiplication expressions to rectangular areas, specifically relating the factors of the expressions to the rows and columns of squares in the rectangle. Then, students are given multiplication expressions and create matching rectangles with inch tiles and drawings on grids.
Activity 1: Match Expressions and Areas
- Relate multiplication to finding the area of rectangles.
- Let’s connect multiplication expressions to area.
Materials to Gather
Materials to Copy
- Match Expressions and Areas
|Activity 1||15 min|
|Activity 2||20 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
In previous lessons students worked with arrays as a way to represent multiplication. How did students’ previous work with arrays support them in representing products as rectangular areas?
- Capture Squares (1–3), Stage 6: Multiply with 1–5 (Addressing)
- Rectangle Rumble (3–5), Stage 1: Factors 1, 2, 5, and 10 (Addressing)
Print Formatted Materials
Teachers with a valid work email address can click here to register or sign in for free access to Cool Down, Teacher Guide, and PowerPoint materials.
|Student Task Statements||docx|
|Lesson Cover Page||docx|
|Cool Down||Log In|
|Teacher Guide||Log In|
|Teacher Presentation Materials||docx|