7th Grade Lesson on Proportionality

7th Grade Lesson on Proportionality

Poll

How do you like your pizza?

• Thick crust!

• Thin Crust!

• Lots of Cheese!

• Lots of Toppings!

• Lots of Sauce!

Why do you like your type of pizza? (Share out)

• How much cheese to crust?

• How much sauce to toppings?

Proportionality

What do you know about it? Rate 1-5 in the chat (5 being you know a lot)

Proportionality

• Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality"

  
  

Making Punch!

Get two cups and put either water or juice in each!

Making Punch!

Look at the ratios of ginger ale to juice. Which would taste good?

Multiple Choice

Ms. Nyasha likes 3 times as much crust to cheese. How would you write that proportion?

• 3:1

• 1:3

• 5:2

• 2:1