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4th Grade Area and Perimeter Introduction
- 1. Area and Perimeter Created by: Erica Danielle Mitchell EDLD 590 Dr. Landor
- 2. -Area is the amount of surface space that an object has. - Area is reported in the amount of square units. Area
- 3. When you measure the amount of carpet to cover the floor of a room, you measure it in square units. Would the area of your bedroom or the area of your house be greater? You’re right! The area of your house is GREATER than the area of your bedroom . ? ?
- 4. Area = ? square feet Lets find the area of this surface. Each square is equal to one foot. How would you do this? LET’S SHARE!!! 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 square feet
- 5. Count the number of green squares to determine the area of this surface. What is the area? The area is equal to ? square units. Try this one! 1 5 2 4 7 3 6 8 9
- 6. Perimeter Perimeter is the distance around the outside of an object. Perimeter is reported as a total number of linear units.
- 7. When you measure the amount of fence needed to go around a yard, you measure it in length. Would the perimeter of a football field or a small garden be greater? You’re right! The perimeter of a football field is greater than the perimeter of a small garden. ?
- 8. Perimeter = 24 feet Let’s find the perimeter of this surface. Each square is equal to one foot. Count the number of sides.
- 9. Count the number of sides to determine the perimeter of this flat object. The perimeter is equal to ?. 12 units
- 10. Two neighbors build swimming pools. This is what the pools look like. Which family has the pool with the bigger swimming area? Let’s do these problems together. Family A Family B
- 11. The area of Family A’s pool is? ? square units. ? square units The area of Family B’s pool is? Therefore, Family ___ has the pool with the bigger swimming area. Family A Family B
- 12. The perimeter of Family A’s pool is 12 units long. The perimeter of Family B’s pool is 14 units long. Therefore, Family B has more side panels of the pool to clean. Now look at those same two pools. Which family has more side panels of the pool to clean? Family B Family A
- 13. The End