Proportionality

Definitions

100

Numbers that have the same value when simplified 

Equivalent Ratos

200

K means this in the equation y=kx

Constant or Constant of Proportionality

300

Letter that represents an unknown number in an equation

Variable

400

Math statement that shows 2 or more expressions using the equal sign

Equation

500

Combo of numbers, variables, and operations (+,-,x,/)

Expression

Ratios

100

Another way to say 1/2 a foot

6 inches

200

Another way to say 1 year

365 days

300

Is 2:4 equivalent to 50:100? 

Yes

400

Is 3:5 equivalent to 12:65?

No

500

Give an equivalent ratio for 1:8

8:64, 2:16, 3:24, 4:32.....

Solve

100

Plug in and solve. Use  y=kx

Y=10    K=5

x=2

200

Plug in and solve. Use y=kx

X=14      K=5

y=70

300

Plug in and solve. Use  y=kx

y=125    x=5

k=25

400

Solve for x

²/_{5. =} ^x/₁₂

_{**hint: cross multiply} 

4.8

500

Solve for x

⁶⁶/₁₁ = ¹²/_x

x=2

Word problem

100

Britney just got a new video game for her birthday. Yesterday, she played for 27 minutes and beat 3 levels. Today, her parents said she can play for 45 minutes.

If she beats levels at the same rate, how many levels should Britney beat today?

5 levels

200

Ariana picked 21 cups of ripe strawberries from her garden. She plans to use all of the strawberries to make strawberry jam. Her recipe calls for 2 cups of sugar for every 7 cups of strawberries.

How much sugar does Ariana need to use?

6 cups

300

Nolan is following his family's macaroni and cheese recipe. The recipe calls for 6 cups of shredded cheese and 4 tablespoons of milk. He wants to make a smaller batch, so he uses only 3 cups of shredded cheese.

How much milk does Nolan need for this smaller batch?

2 tablespoons 

400

Eliana owns the Blossom garden shop. To keep her plants healthy, she always adds 3 cups of fertilizer for every 8 cups of soil. She filled a large pot with 24 cups of soil for a ficus plant.

How many cups of fertilizer should Eliana add to the pot?

 9 cups of fertilizer

500

The trainers at Atlantis Aquarium perform shows about sea life. Yesterday, they performed 4 shows in 2 hours. Today, they will perform 6 shows.

If they perform shows at the same rate, how many hours will the trainers spend performing shows today?

3 hours

non-math related

100

Theresa's Favorite animal

Rhino

200

This teacher has a twin sister.

Trick question: Theresa and Millie both do!!

300

This teacher has 9 tattoos.

Millie

400

The teachers have a total of ____ cats. (Theresa, Emmet, Kaisha and Millie)

6

500

Emmet has _____ little guys on his desk.

HE HAS 8 LITTLE GUYS!!!!