8.EE.5
5. Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. For example, compare a distancetime graph to a distancetime equation to determine which of two moving objects has greater speed
Kobayashi vs. Giant Bear
Rain Barrel Investigation
So, we have this rain barrel that holds 50 gallons of water and it was completely full during the last rain.
After the rain I emptied the rain barrel because it is getting cold and I did not want the water inside the barrel to freeze. Below i have documented how many gallons were in the rain barrel and how long it took for the water to drain out. 
Find the rate at which the water was leaving the barrel at during each timing.
Why are the rates different?
What is slope?

Positive slopeNegative slopeZero slopeUndefined 
How do I find slope?
Mario teaches me how slope and rate are connected!
What is the slope of the line that represents the jump Mario would have to make to clear the bricks from the pipe?

What is the slope of the line that represents Mario's downhill slide? Lets take a look at a negative slope / rate.

Lesson: Finding slope / rate

Checklist #1

Lesson: Graphing Proportional Relationships

Proportional Relationships in Action
Student created examples of the relationship between distance and time.
Lesson: Comparing Rates in Different Forms
Group Work Choices Challenge (Crazy Rates)
Sports:

Vehicles:Land Rocket Test Track (feet per second)

Music:World's Fastest Guitar Player (beats per minute)

Guinness World Records:Human Dominoes (falls per second)

Feats of Nerdom:Cup Stacking (cups handled per second)

Animal Kingdom:Salamander Tongue (feet per second)
