1. 3rd Grade Math Module 7 Lesson 12
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3rd Grade Math
Module 7 Lesson 12

2. I can measure side lengths to determine the perimeter of polygons.
Lesson 12 Learning Goal
I can measure side lengths to determine the perimeter of polygons.

3. Say the multiplication sentence
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Count by threes to 30.
3, 6, 9, 12, 15, 18, 21, 24, 27, 30 1
three 2
threes 3
threes 4
threes 5
threes 6
threes 7
threes 8
threes 9
threes 10
threes
Say the multiplication sentence
Equivalent Counting with Units of Three

4. What is the area of the rectangle?
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Shade a rectangle that is 2 units wide by 3 units long.
What is the area of the rectangle?
Area and Perimeter

5. Draw a line around the perimeter of the rectangle.
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Draw a line around the perimeter of the rectangle.
Area and Perimeter

6. What is the area of the rectangle?
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Shade a rectangle that is 4 units wide by 2 units long.
What is the area of the rectangle?
Area and Perimeter

7. Draw a line around the perimeter of the rectangle.
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Draw a line around the perimeter of the rectangle.
Area and Perimeter

8. What is the area of the rectangle?
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Shade a rectangle that is 3 units wide by 5 units long.
What is the area of the rectangle?
Area and Perimeter

9. Draw a line around the perimeter of the rectangle.
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Draw a line around the perimeter of the rectangle.
Area and Perimeter

10. Use suggested materials for
Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Use suggested materials for
Concept Development.
Concept Development

11. Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Angela measures the sides of a square napkin with her ruler. Each side measures 6 inches. What is the perimeter of the napkin?
Application Problem

12. Lesson 12
I can measure side lengths to
determine the perimeter of polygons.
Angela measures the sides of a square napkin with her ruler. Each side measures 6 inches. What is the perimeter of the napkin?
6 inches
6 x 4 = 24 inches
The perimeter of the napkin is 24 inches.
6 in
6 in
6 inches
Application Problem