1. Slide
60 seconds
Area is the measure of the space inside the shape. Perimeter is the measure of the length around the outside of the shape. You can find the area and perimeter of rectangles, triangles, and other shapes.
Area and Perimeter
2. Slide
60 seconds
Area is the amount of space inside the boundary of a two-dimensional shape. It is measured in square units such as square centimeters, square meters, or square inches. Perimeter is the distance around the outside of a two-dimensional shape. It is measured in linear units such as centimeters, meters, or inches. A rectangle is a four-sided shape with opposite sides that are equal in length and parallel to each other. The formula to calculate the area of a rectangle is length times width, and the formula for the perimeter is (length + width) x 2.
Concepts:
3. Open question
300 seconds
What are the different ways to calculate the area and perimeter of a shape?
4. Open question
300 seconds
What are some real world applications of area and perimeter?
5. Drawings
450 seconds
Brain break: Draw a hot dog floating in outer space wearing a cape surrounded by flying french fries.
6. Poll
60 seconds
What is the formula for finding the area of a rectangle?
- Length x Width
- Length + Width
- 2 x (Length + Width)
- (Length - Width) / 2
7. Poll
60 seconds
What is the formula for finding the perimeter of a square?
- 4 x Side Length
- Side Length x Side Length
- (Side Length / 2) x 3.14
- (Side Length - 1) / 2
8. Poll
60 seconds
Which one measures the outside length of an object, perimeter or area?
- Perimeter
- Area
9. Poll
60 seconds
What are units used to measure area?
- Square units (sq. units)
- $/m^3$
- $/m^2$
10. Poll
60 seconds
A rectangle has a length of 5cm and width of 3cm. What is its perimeter?
- 16 cm
- 10 cm
- 14 cm
11. Open question
240 seconds
Work together in pairs: What is the formula for finding the area of a rectangle?
12. Drawings
1260 seconds
Question: You are an architect responsible for building a playground for a school. How can you use area and perimeter to build the playground? Clues: • Area is the amount of space enclosed by a two-dimensional shape. • Perimeter is the total distance around the outside of a two-dimensional shape. • To calculate area and perimeter, you need to know the length and width of a shape. In pairs: Select and solve one of the tasks: A. Work with a partner to draw a playground using the area and perimeter you have calculated. B. Explain why it is important to use area and perimeter to build the playground accurately.
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