Fractions
Formulas
Number Models
Area & Perimeter
Miscellaneous
100
What is the top of a fraction called? What is the bottom of the fraction called?
Numerator Denominator
100
What is the formula for the area of a square or rectangle?
Length x Width = Area Base x Height = Area
100
What is a number model? You can use an example to explain.
A number model is a formula with numbers substituted
100
#14-- Display rectangle. What is the Perimeter of the rectangle?
14 cm
100
1/3 + 2/3 =?
3/3 or 1
200
When adding and subtracting fractions does the numerator or denominator stay the same? Show an example
Denominator
200
What is the formula for the Area of a Parallelogram? Use a diagram to explain
Base x Height = Area
200
#1--What is the number model for this rectangles perimeter? --Draw rectangle on the board
6+6+10+10=32 or 12+20=32
200
#15-- Display Parallelogram. What is the Area of the parallelogram?
6cm squared
200
7/8 - 5/8 = ?
2/8
300
Before adding and subtracting fractions the denominator must be the same. How can you convert fractions to have the same denominator?
Multiply or divide by a common factor
300
What is the formula for the area of a triangle? Use a diagram to explain
1/2 Base x Height = Area Base x Height /2 = Area
300
If you have a rectangle with a base of 4cm and a height of 3cm, what is the number model to find the Area?
4x3=12cm squared
300
#16--Display Triangle. Using a number model what is the area of the triangle?
1.5x2=3 OR 3x2/2=3cm squared
300
2/5 + 4/10 = ?
4/5 or 8/10
400
# 12-- If you spin the spinner 600 times, how many times would you expect it to land on blue? green? Orange?
Blue-300 Green-150 Orange-75
400
Printed off--Display Parallelogram to find Area.
Area=60cm squared
400
If your triangle has a base of 6 inches and a height of 5 inches, What is a number model for the area?
6x5 /2 = 15 inches squared OR 3x5= 15 inches squared
400
#4-- Display polygon. What is the area of this polygon?
12 cm squared
400
On a map with the scale of 1 inch=370 miles, If a country has a perimeter of 3 inches by 10 inches what is the Scale Area. --Draw on board if needed
11,100 square miles
500
#13-- A jar contains 12 blue blocks, 5 red blocks, 6 orange blocks and 2 green blocks. You put your hand in the jar and without looking pull out a block. What fraction could it be a red block?
5/25 or 1/5
500
Printed off--Display Triangle to find the Area. What is the Area?
Area =45 meters squared
500
If the Area of your rectangle is 30 cm squared what are some possible number models for the base and height?
30= 5x6 30=10x3 30=15x2
500
Mrs. Farokhi wants to tile her kitchen floor. The room is 14 feet wide and 12 feet long. How many 1-inch tiles does she need to cover this area?
168 tiles
500
The store is giving a 50% discount on all clothes in the store. Find the discounted price of these items: Pants 53.00 Shirt 12.50
Pants 26.50 Shirt 6.25
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