SWBAT identify the constant of proportionality between two quantities
SWBAT understand equations of the form y=kx, with k as the constant of proportionality
1 point
1
Question 1
1.
Steak--One thing everyone should know about Mr. Espinoza is that one of his favorite dishes to make is a nice rib-eye steak cooked medium-rare. When he went to the store, the butcher gave him the following table:
a) Is the cost of steak proportional to the weight? How do you know?
"The cost of steak (is / is not) proportional to the weight because..."
CFS:
#1: Accurately computes unit rate or constant of proportionality
#2: Accurately explains using appropriate vocabulary
1 point
1
Question 2
2.
b) If the total cost of steak is y and the pounds of steak is x, write an equation to represent the relationship between the two quantities.
1 point
1
Question 3
3.
c) How can you prove that your equation in #2 is correct? Explain with math evidence.
0 points
0
Question 4
4.
Dessert--Over the weekend, Emmanuel went to Yogurtland with some friends. Each person weighed their dessert and recorded how much they paid. What is an equation to represent the proportional relationship?
CFS:
#1: Accurately computes unit rate
#2: Accurately writes equation
SPICY
1 point
1
Question 5
5.
Chef —This year, Coach Almasin wants to bake some cupcakes to bring for the athletes on his sports teams. His cookbook shows measurements in ounces, but he only has the tools to measure in cups at home. If these two units are proportional, he can still get the right measurements. Using the diagram, help Coach T figure out how many ounces go into each cup so he can finish baking!
Are cups and ounces proportional? How do you know?
1 point
1
Question 6
6.
Summer Jobs--Abel spent the summer helping out at his family’s business because he really wanted to earn enough money to buy a new Xbox One S from Mancini Mart for $220. Halfway through the summer, after working for 4 weeks, he had earned $112. If he keeps working and earning money at this rate, will he have enough money to buy the Xbox by the end of the summer? Being a great math student, Abel decided to make a table to figure out if he’ll have enough money at the end of the summer:
Fill in the rest of the table. Will Abel have enough money by week 8 to buy that new Xbox?
4 points
4
Question 7
7.
Clubs— Mr. Espinoza needs to make 4 pitchers of juice to bring to his after-school club, but he is too busy playing Legend of Zelda so he asks Nik to do it for him. The directions on the box say to mix 2 scoops of powdered drink mix with a half gallon of water to make each pitcher of juice. Nik tells Mr. Espinoza that he will just mix 8 scoops of powder with 2 gallons of water to make the 4 pitchers.
Use what you know about proportional relationships to determine whether Nik is correct.
1 point
1
Question 8
8.
Write an equation to represent the proportional relationship. If y is the scoops of powder and x is the gallons of water, choose the equation below that has the correct constant of proportionality.
0 points
0
Question 9
9.
If you finish early...
What's your favorite dessert? (Like brownies, NOT desert like the Sahara) 😄