Scale Drawings
Introducing Proportional Relationships
Measuring Circles
Proportional Relationships and CoP
Rational Number Arithmetic
100
True or false: A scale drawing is one that is stretched out
False, it can be bigger or smaller but not stretched
100
True or false: A proportional relationship is when one quantity or variable can always be multiplied by the same thing to get the other quantity or variable.
True
100
True or false: The radius of the circle is the length of a line that goes all the way across the circle through the center
False, that is the diameter
100
Does the graph show a proportional relationship? 
yes
100
The number 18/23 is not a rational number. True or False and why?
False. It is a rational number because all fractions are rational numbers.
200
Triangle 2 is scale drawing of Triangle 1. What is the length of side x?
40cm
200
Every hour that passes of the day, Kayden blinks exactly 1230 times. Is this a proportional relationship?
Yes
200
If the diameter of a circle is 18 feet, what would the length of its radius be?
9 feet
200
Garden Fresh deli sells 2 turkey sandwiches for $8.50. The total cost in dollars, y, to buy x turkey sandwiches can be modeled by what equation?
y=4.25x
200
10 - (-5)
15
300
A rectangle is 5 inches by 3 inches. Using a scale factor of 4, what would the dimensions of the new scaled rectangle be?
20 inches by 12 inches
300
Mr. Craig goes for a run and it takes 8 minutes to run a mile. The next mile takes him 10 minutes. Is this a proportional relationship?
No, because each mile does not take the same amount of time.
300
What are the two approximations of Pi that we use?
3.14 and 22/7
300
The table below represents a proportional relationship. What is the constant of proportionality as an improper fraction? 
3/2
300
Solve the following equation
-17 + d = -25
-8
400
I make a scale drawing of our classroom using a scale of 1 to 5 (meaning the drawing is 5 times smaller than the actually size of the room)
The dimensions of the room are 20 feet by 25 feet. What would the room dimensions be in my drawing?
4 feet by 5 feet
400
Let's pretend Kyle has a job. He makes $90 from 6 hours of work. What is the constant of proportionality? (or in other words, how much does he make every hour?)
$15
400
If the length of the diameter of a circle is 10 inches, what is roughly the length of the circumference (which is the length of the outside of the circle)?
about 31.4 inches (because 10 x 3.14 = 31.4)
400
What is the equation that represents the proportional relationship graphed below? 
y=4x
400
The Blake family budgets 1/3 of their income for rent and 1/4 of their income for food. How much of their budget is left?
5/12 of their budget is left.
500
The area of a school desk is about 6 square feet. If I design a new giant desk whose lengths are three times longer on both sides, what would the area of this new desk be?
54 square feet
500
In the equation y = 12x, x represents the height of a student in feet and y represents their height in inches.
If Brad is 4.75 feet tall, what is y equal to?
57 inches tall
500
What is the area of a circle if its radius is 4 centimeters?
about 50.24 cm2 (because 3.14 x 4 x 4 = 50.24)
500
A printer can print 2 pages in 6 seconds. If the proportional relationship between the number of pages printed and the time, in seconds, is plotted on a graph, which point will the line pass?
(1,1) (1,3) (3,1) (3,3)
(1,3)
500
Three students ran for president of the student council. Matt received 1/5 of the votes. Elizabeth received 4/9 of the votes. Rachel received the rest. Which student won the election and how many votes did they receive?
Elizabeth won and received 20 out of 45 votes.