Slide 1: $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 Name That Shape Key Words Perimeter Area Challenge
Slide 2: What shape is my head? Hint: It’s a four-sided figure with equal sides.
Slide 3: Square
Slide 4: What shape is this three-sided figure?
Slide 5: Triangle
Slide 6: What is a four-sided figure that has:
Two pairs of parallel sides
- AND -
Equal opposite sides.
- AND -
Corners are square.
Slide 7: Rectangle
Slide 8: What is a four-sided figure with one pair of parallel sides? HINT!!
Slide 9: Trapezoid
Slide 10: What is a four-sided figure with equal sides (hint: not a square).
Slide 11: Rhombus
Slide 12: Dori rode her bicycle once around the edge of a lake. The distance around the lake is also called the ____________?
Slide 13: Perimeter
Sometimes we want to know the amount of surface inside a shape. The amount of surface inside a shape is called the ________ of a shape. : Sometimes we want to know the amount of surface inside a shape. The amount of surface inside a shape is called the ________ of a shape.
Slide 15: Area 4 cm. 2 cm. One way to find the area of a shape is to count the number of squares that cover the inside of the shape… I see 8 squares! The area must be 8 square centimeters!
Slide 16: Area can be measured in square units. A square with sides 1 inch long is a ___________ _____?
Slide 17: Square Inch Area can be measured in square units. A square with sides 1 inch long is a square inch. 1 Square Inch
Slide 18: What is the distance around a circle?
Slide 19: Circumference
Slide 20: What is the distance across the circle, through it’s center?
Slide 21: Diameter
Slide 22: Find the Perimeter! Your answer needs to include units in order to be correct. Each side is 4 cm.
Slide 23: Perimeter = 20 cm 4 + 4 + 4 + 4 + 4 = 20 cm
Slide 24: The perimeter of this rectangle is 10 units. The long sides measure 4 units. What do the short sides measure? 4 units 4 units ____ units ____ units
Slide 25: 4 units 4 units 1 unit 1 unit 4 + 4 + 1 + 1 = 10
Slide 26: Which has the larger perimeter, polygon A or polygon B? A B For a bonus $300 what is the perimeter of Polygon A and what is the perimeter of Polygon B? (where each side of a square is 1 centimeter)
Slide 27: Polygon B Polygon A = 26 cm. Polygon B = 28 cm.
Slide 28: Find the Perimeter! 3 in. 3 in. 4 in. 2 in. 2 in. ____ in. Your answer needs to include units in order to be correct. Hint: add 3in. + 3in. to get this value to help you find the perimeter.
Slide 29: 3 in. 3 in. 4 in. 2 in. 2 in. 6 in. Perimeter = 20 in. 3 + 2 + 3 + 2 + 4 + 6 = 20 in.
Slide 30: Fill-in the missing boxes. You must get ALL correct to receive prize money.
Slide 32: Guess that Area!
Each square is 1 square foot
The area of this shape is _______ square feet.
Slide 33: The area of this shape is 31 square feet. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft. 1 sq. ft.
Slide 34: Look at the 3 - by- 5 rectangle.
What is the Area of that rectangle?
Answer: _________ square units.
Slide 35: Area: 15 square units Did you add up the number of squares in the rectangle?
Slide 36: This is a ______ -by- ______ rectangle.
Area = _________ square units. You must get this question completely correct to receive all prize money.
Slide 37: This is a 3 -by- 9 rectangle.
Area = 27 square units.
Slide 38: Can you figure out the number model for this rectangle? Number Model:
______ x ______ = ______
Area = ______ square units You must get all correct to receive full prize money.
Slide 39: Number Model:
6 x 5 = 30
Area = 30 square units
Slide 40: Mrs. Li planted tomato plants in her garden. She planted 4 rows with 8 plants in each row.
What is the area of her garden? Mrs. Li planted tomato plants in her garden. She planted 4 rows with 8 plants in each row. If each plant took up 1 square foot…
What is the area of her garden?
Slide 41: 4 rows with 8 plants in each row,
each plant takes up 1 square foot…
Area = 32 square feet
Slide 42: Look at the rectangle below. Which is larger: the perimeter, or the area?
Slide 43: 4 units 4 units They are EQUAL!! Perimeter: 4 + 4 + 4 + 4 = 16 (each side is 4 units) Area = 4 x 4 = 16 (16 square units inside rectangle)
Slide 44: Which three triangles have similar shapes? A B C D E F
Slide 45: A B C D E F A, B, & F have similar shapes!
Slide 46: The circumference of ANY circle is approximately _____ times its diameter.
Slide 47: The circumference of ANY circle is approximately 3 times its diameter.
Slide 48: Jon ran twice around the soccer field. How far did he run? 100 yards 50 yards 50 yards 100 yards Soccer Field
Slide 49: Soccer Field He ran 600 yards!
100 + 100 + 50 + 50 = 300 (1 time around field)
300 + 300 = 600 (2 times around field) 100 yards 100 yards 50 yards 50 yards
Slide 50: Mr. Randolf decided to plant cucumbers in his garden. He planted 5 rows with 9 plants in each row. Each plant takes up 1 square foot.
What is the area of his garden? (in square feet)
What is the perimeter of his garden? (in feet)
Slide 51: Area: 5 x 9 = 45 square feet Perimeter: 9 + 9 + 5 + 5 = 28 feet 9 feet 5 feet