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Classroom Area and Scaling

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Classroom Area and Scaling

Classroom objects for measurement

📏 Part 1: Calculating Area and Perimeter

1. A classroom desk measures 60 cm long and 40 cm wide.

a) Calculate the area: _______ cm²

b) Calculate the perimeter: _______ cm

2. A textbook measures 25 cm long and 20 cm wide.

a) Area = _______ cm²

b) Perimeter = _______ cm

3. A carpet tile is 30 cm × 30 cm (square shape).

a) Area = _______ cm²

b) Perimeter = _______ cm

4. The classroom whiteboard measures 120 cm long and 80 cm wide.

a) Area = _______ cm²

b) Perimeter = _______ cm

🔢 Part 2: Scaling Up

5. If one desk has an area of 2,400 cm², what is the total area of 4 desks?

Total area = _______ cm²

6. If one textbook has a perimeter of 90 cm, what is the total perimeter if you place 6 textbooks side by side (not touching)?

Total perimeter = _______ cm

7. Four carpet tiles (each 30 cm × 30 cm) are arranged to make a larger square.

a) What is the total area covered? _______ cm²

b) What is the perimeter of the large square? _______ cm

8. If 8 whiteboards were placed together in a 2 × 4 arrangement, what would be the total area?

(Remember: each whiteboard = 120 cm × 80 cm)

Total area = _______ cm²

🎯 Part 3: Unit Conversion Challenge

9. Convert these measurements from cm to metres:

a) 2,400 cm² = _______ m²

b) 360 cm = _______ m

c) 9,600 cm² = _______ m²

10. Extension: A classroom floor is covered with carpet tiles. Each tile is 30 cm × 30 cm. If the classroom floor measures 6 m × 4 m, how many tiles are needed?

Number of tiles needed = _______

11. Draw and label a classroom object of your choice. Include its measurements and calculate both area and perimeter.

Object: _____________

Length: _______ cm Width: _______ cm

Area: _______ cm² Perimeter: _______ cm

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