1. Word cloud

120 seconds

What is the basic definition of perimeter?

2. Slide

60 seconds

"Calculate the perimeter and select appropriate units of length" Success Criteria: I can define perimeter I can calculate perimeter I can choose appropriate units of measurement for specific situations

Learning objective:

3. Word cloud

90 seconds

Perimeter - When will I use it?

4. Slide

60 seconds

Perimeter is the distance around a 2D shape. It can be found by adding up the length of each side of a shape. It is used to measure the size of a shape.

Perimeter - What is it and how it works

5. Open question

120 seconds

How do we find the perimeter of a triangle?

6. Open question

120 seconds

How do we find the perimeter of a square?

7. Open question

120 seconds

How do we find the perimeter of a rectangle?

8. Open question

120 seconds

How do we find the perimeter of a quadrilateral?

9. Open question

120 seconds

How do we find the perimeter of a circle?

10. Slide

60 seconds

Ancient Egyptians used ropes with knots to measure the perimeter of fields. The Great Wall of China is 21,196 km long, making it the longest man-made structure in the world. The circumference of the Earth is 40,075 km.

Fun facts:

11. Open question

660 seconds

Work together in pairs: Given a rectangle with a length of 10 cm and a width of 6 cm, what is the perimeter of the rectangle in cm?

12. Open question

660 seconds

What units of measurement would you use to measure the perimeter or circumference of the following: - Hokey Oval - Table - Pencil - House

13. Drawings

450 seconds

Brain break: Draw a picture of a giant elephant balancing on a beach ball!

14. Poll

300 seconds

What is the perimeter of a square with sides of 3 cm?

- 9 cm
- 6 cm
- 12 cm
- 8 cm

15. Poll

300 seconds

What is the perimeter of a rectangle with sides of 4 cm and 5 cm?

- 13 cm
- 14 cm
- 18 cm
- 20 cm

16. Poll

300 seconds

What is the perimeter of a triangle with sides of 2 cm, 3 cm, and 4 cm?

- 9 cm
- 10 cm
- 12 cm
- 14 cm

17. Poll

300 seconds

What is the perimeter of a circle with a diameter of 6 cm?

- 36 cm
- 18 cm
- 12 cm
- 9 cm

18. Poll

300 seconds

What is the perimeter of an octagon with sides of 3 cm?

- 24 cm
- 18 cm
- 27 cm
- 36 cm

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