Proportional Relationships in Recipes

Mrs. Lopez teaches a Grade 7 lesson on finding equivalent ratios using fractions and mixed numbers. The lesson includes examples with pizza toppings and exercises on proportional relationships. Students learn to calculate ingredient amounts for different orders and explore ratios in recipes like macaroni and cheese.

What is the first step in finding equivalent ratios when dealing with fractions?

• Multiply all fractions by 2

• Find a common denominator

• Add all fractions together

• Convert fractions to decimals

How much total topping is used on a meatlovers pizza?

• 1/2 cup

• 1 cup

• 2 cups

• 3 cups

In the context of the lesson, why is it important to maintain the same ratio of ingredients?

• To ensure consistent quality

• To save money

• To use up all ingredients

• To make the process faster

If 1/4 cup of sausage is used in one pizza, how much is needed for an order requiring 1 cup of sausage?

• Multiply by 3

• Multiply by 5

• Multiply by 2

• Multiply by 4

What happens to the amount of pepperoni when the order size is multiplied by 4?

• It is multiplied by 2

• It stays the same

• It is divided by 4

• It is multiplied by 4

What is the result of multiplying 1/8 cup of ham by 9?

• 2 cups

• 1 cup

• 1 and 1/8 cups

• 9/8 cups

What is the constant of proportionality if 3 and 1/2 miles run results in 7 miles biked?

• 4

• 3

• 2

• 1

In a proportional relationship, if the distance biked is twice the distance run, what is the constant of proportionality?

• 2

• 1

• 1/2

• 3

How is the constant of proportionality found in a recipe for macaroni and cheese?

• Add cheese and noodles

• Divide cheese by noodles

• Divide noodles by cheese

• Multiply cheese by noodles

If 3 cups of noodles require 3/4 cups of cheese, what is the constant of proportionality?

• 1/4

• 1/2

• 1/3

• 1