Rates and Unit Rates
Similar Figures
Proportions
Scale Factor
Vocabulary
100
A recipe for 36 muffins calls for 6 cup of flour. How many muffins can you make with 1 cup of flour?
What 6 muffins
100
Tell whether slide 6 contains similar figures
What is Yes
100
Solve Slide 1 for s
What is 58 degrees
100
What is the scale factor of a model measuring 26 inches and a dolphin measuring 260 inches?
What is 1/10
100
what do you call a proportional, two-dimensional drawing of an object?
What is scale drawing
200
An after school job pays $116.25 for 15 hours of work. How much money does the job pay per hour?
What is $7.75
200
Tell whether the figures on slide 7 are similar.
What is No
200
Solve Slide 2
What is about 25 ft
200
On a map, 1 inch = 7 miles. How far are two cities that are 3 inches apart?
What is 21 miles.
200
What do you use to solve proportions?
What is cross products
300
Find the unit rate if a baseball player gets 9 runs in 3 games?
What is 3 runs per game
300
Pick the two shapes that are always similar. Squares, Rectangles, Parallelograms, Equilateral Triangles.
What is Squares and equilateral triangles.
300
Solve slide 3 for z
What is z = 6
300
Convert 192 inches into feet.
What is 16 feet
300
What do you call an equation stating that two ratios are equivalent?
What is proportion
400
Find the unit rate if a swimmer swims 1.56 miles in 39 minutes.
What is 0.04 miles per minute
400
Tell whether the parallelogram and trapezoid on Slide 8 could be similar. Explain your answer.
What is No. Corresponding angles are not equal.
400
Solve Slide 4
What is 28 ft
400
A photograph was enlarged into a poster. The poster is 20 inches by 35 inches. The scale factor is 5/1. Find the size of the original photograph.
What is 4 inches by 7 inches.
400
What do you call a rate whose denominator is 1 and is written as a fraction?
What is unit rate
500
Which is a better buy? A 42 oz. bag of carrots for $2.52 or a 52 oz. bag of carrots for $3.64?
What is The 42 oz bag.
500
Tell whether the figures on slide 9 are similar
What is Similar
500
Solve slide 5
What is 3.75
500
On a scale model with a scale of 1/16, the height of a shed is 7.5 inches. What is the approximate height of the actual shed in feet?
What is 10 feet
500
What two things make figures similar?
What is equal angles and proportional sides
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