Understanding Ratio Tables and Unit Rates

Lesson 13 covers the concept of ratios and unit rates, emphasizing their simplicity and application in various contexts. The lesson uses a cookie recipe to illustrate how to set up and interpret a ratio table, calculate unit rates, and write equations from ratios. It also addresses how to handle missing values in ratio tables and the importance of correctly setting up columns to ensure accurate calculations.

What is the value of a ratio often referred to as?

• The product of the numbers

• The sum of the numbers

• The unit rate

• The difference between numbers

In the cookie recipe example, what is the unit rate of brown sugar to white sugar?

• 4 cups of brown sugar per cup of white sugar

• 3 cups of brown sugar per cup of white sugar

• 2 cups of brown sugar per cup of white sugar

• 1 cup of brown sugar per cup of white sugar

When setting up a ratio table, why is the order of columns important?

• It changes the multiplication factor

• It affects the total sum

• It determines the unit rate

• It doesn't matter

What is the correct way to find the value of a ratio in a table?

• Subtract the first column from the second column

• Divide the second column by the first column

• Multiply the numbers in the first column

• Add the numbers in both columns

How can you verify the values in a ratio table?

• By adding the values in each row

• By dividing the left column by the right

• By multiplying the left column by the unit rate

• By subtracting the right column from the left

What equation represents the relationship between white and brown sugar in the example?

• Brown sugar = 4 * White sugar

• Brown sugar = 5 * White sugar

• Brown sugar = 2 * White sugar

• Brown sugar = 3 * White sugar

How do you find a missing value in a ratio table?

• By dividing the known value by the unit rate

• By adding the known values

• By multiplying the known value by the unit rate

• By subtracting the known value from the total

What operation is used to go from the first column to the second in a ratio table?

• Subtraction

• Division

• Addition

• Multiplication

What is the inverse operation of multiplication used in ratio tables?

• Addition

• Subtraction

• Division

• Exponentiation

Why might you need to use multiplication and division in complex ratio tables?

• To add more columns

• To handle fractions or decimals

• To change the unit rate

• To simplify the numbers