More Shops—Ms. Bizzell is opening a store that exclusively sells Pokemon cards.

a) Does Ms. Bizzell's pricing show a proportional relationship? Explain.

"I think Ms. Bizzell’s pricing (shows / does not show) a proportional relationship because…"

CFS:

#1: Accurately computes unit rates or finds constant of proportionality

#2: Accurately explains if a table is proportional using appropriate vocabulary and evidence

Weather—It doesn’t snow often in San Jose, but some data on the amount of snowfall during the last snowstorm in 1976 was recorded in the table below:

a) Is the relationship between time (x) and snowfall (y) proportional? How do you know?

"I think the relationship between time and snowfall (is / is not) proportional because..."

CFS:

#1: Accurately computes unit rates or finds constant of proportionality

#2: Accurately explains if a table is proportional using appropriate vocabulary and evidence

Blockbuster--Back when your teachers were kids, we had to rent movies from a place called Blockbuster. The table below shows how much money Mr. A paid and how long he could keep the movies for.

Is there a proportional relationship between the cost of renting and the total number of days? Explain how you know.

CFS

#1: Accurately computes unit rates

#2: Accurately explains if a table is proportional using appropriate vocabulary and evidence

Commission--Mr. Hwung knows someone named Selly McCarman, who is a car salesman. He makes money from commission, which means he earns more money when he sells more cars.

A table of Selly's sales from last month is below:

Is the amount of money that Selly earned proportional to the number of cars he sold? Explain and check that you meet all CFS.

CFS

#1: Accurately computes unit rates

#2: Accurately explains claim using appropriate vocabulary/evidence