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Perimeter: all the way around: 3rd grade math

Perimeter; same perimeter with different area. A free 3rd grade lesson plan, a question set with answers and a printable sheet with its key. Copy it and make it yours.

Lesson plan

Goal

  • Students can do this: perimeter; same perimeter with different area.

Teach (10 min)

  • Perimeter is the distance all the way around a shape.
  • Add up every side. A rectangle has two pairs of matching sides.
  • Work one example on the board while students say each step aloud, then do one together.

Practise (15 min)

  • Students work the printable sheet in pairs, then alone.
  • Or practise it as a game with no sign-up: https://peabody.kids/math/whole.perim?lesson=3-perimeter&at=3

Exit ticket (5 min)

  • Use the first three questions on the printable sheet as a slip.

Printable sheet

Name: ____________________   Date: ____________

Perimeter: all the way around (3rd grade)

  1. How far is it all the way around? That's the perimeter.
    3 meters3 meters3 meters3 meters
  2. How far is it all the way around? That's the perimeter.
    6 feet6 feet6 feet6 feet
  3. How far is it all the way around? That's the perimeter.
    5 feet5 feet5 feet5 feet
  4. How far is it all the way around? That's the perimeter.
    6 meters4 meters6 meters4 meters
  5. How far is it all the way around? That's the perimeter.
    4 meters6 meters4 meters6 meters
  6. How far is it all the way around? That's the perimeter.
    9 feet9 feet9 feet9 feet
  7. How far is it all the way around? That's the perimeter.
    7 centimeters7 centimeters7 centimeters7 centimeters
  8. How far is it all the way around? That's the perimeter.
    8 feet5 feet8 feet5 feet
  9. How far is it all the way around? That's the perimeter.
    6 meters6 meters6 meters6 meters
  10. How far is it all the way around? That's the perimeter.
    3 inches9 inches3 inches9 inches
  11. How far is it all the way around? That's the perimeter.
    7 centimeters7 centimeters7 centimeters7 centimeters
  12. How far is it all the way around? That's the perimeter.
    13 centimeters13 centimeters13 centimeters13 centimeters
Key
  1. 12
  2. 24
  3. 20
  4. 20
  5. 20
  6. 36
  7. 28
  8. 26
  9. 24
  10. 24
  11. 28
  12. 52

Written by Peabody from its own skill pages. Free, no ads, no sign-in. Children can practise this on Peabody. More from teachers: teacher-shared resources.