Finding Ratios and Unit Rates

Mrs. Zapia's lesson focuses on finding equivalent ratios given a total quantity. The lesson skips initial examples and dives into using a ratio table to adjust recipes for different pan sizes. The process involves calculating unit rates and using them to determine missing quantities in a ratio table. The lesson concludes with a summary of the steps to find missing quantities in a ratio table where a total is given.

What is the main focus of Lesson 13?

• Finding equivalent fractions

• Solving algebraic equations

• Finding equivalent ratios given the total quantity

• Understanding geometric shapes

What is unique about the table used in this lesson?

• It has four columns

• It has three columns instead of the usual two

• It uses decimals instead of fractions

• It only includes whole numbers

How do you find the unit rate from the given pair of 3 cups of noodles and 3/4 cups of cheese?

• Multiply 3 by 3/4

• Divide 3/4 by 3

• Subtract 3 from 3/4

• Add 3 and 3/4

What is the total pan size when you have 1 cup of noodles and 1/4 cup of cheese?

• 2 cups

• 1 and 1/4 cups

• 1 and 1/2 cups

• 1 cup

How do you calculate the new unit rate in the new XY ratio table?

• Multiply X and Y values

• Subtract X from Y

• Add X and Y values

• Divide Y by X

What is the new unit rate when using the ordered pair 1 and 1/4 divided by 1/4?

• Four

• Five

• Seven

• Six

If the pan size is 5 and 5/8, how many cups of cheese are needed?

• 1 cup

• 1 and 1/2 cups

• 1 and 1/8 cups

• 1 and 1/4 cups

What operation is used to find the missing number of noodles when the total pan size and cheese amount are known?

• Addition

• Multiplication

• Subtraction

• Division

What is the missing number of noodles if the pan size is 5 and 5/8 and the cheese amount is 1 and 1/8?

• 4 and 1/2

• 4

• 5 and 1/2

• 5

What key concept did you learn in this lesson?

• How to solve quadratic equations

• How to find missing quantities in a ratio table

• How to calculate area of a circle

• How to convert units of measurement