In a previous lesson, students were reminded about the relationship between the side lengths and the perimeter of a rectangle and reasoned multiplicatively to solve problems about those measurements. In this lesson, they continue to do so but in contexts that require them to convert the units and interpret them. Students also consider the perimeter of other quadrilaterals.
- Solve problems involving perimeter using multiplicative comparison and addition or subtraction of fractions (including mixed numbers)
- Let’s solve problems about the perimeter of various shapes.
Materials to Copy
- Missing Measurements - Large
- Missing Measurements - Small
- If the activity is done as a gallery walk, print and cut 1–2 copies of the blackline master with the larger images and post them around the classroom. Otherwise, print and cut 1 copy of the blackline master with the smaller images for each group of 3–4 students.
|Activity 1||15 min|
|Activity 2||20 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
- Can You Draw It? (1–5), Stage 4: Area and Perimeter (Supporting)
- Rectangle Rumble (3–5), Stage 3: Factors 1–10 (Supporting)
Print Formatted Materials
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|Student Task Statements||docx|
|Lesson Cover Page||docx|
|Cool Down||Log In|
|Teacher Guide||Log In|
|Teacher Presentation Materials||docx|