Lesson Topic: Comparison Shopping – Unit Price and Related Measurement Conversion

Lesson Objective: I can…• Solve problems by analyzing different unit rates in given

tables, equations, and graphs.

Examples 1 and 2: Creating Tables from Equations

The ratio of cups of blue paint to cups of red paint is : , which means for every cup of 𝟏𝟏 𝟐𝟐blue paint, there are two cups of red paint. In this case, the equation would be red = × blue, or = , where 𝟐𝟐 𝒓𝒓 𝟐𝟐𝟐𝟐 𝒃represents the amount of blue paint and 𝒓𝒓represents the amount of red paint. Make a table of values.

Questions for Example 1:

Examine the table, and identify the unit rate.

Where do you see this value in the equation?

Example 2:Ms. Siple is a librarian who really enjoys reading. She can read of a book in 𝟑𝟑𝟒𝟒one day. This relationship can be represented by the equation days = 𝟑𝟑𝟒𝟒books, which can be written as

= , where is the number of 𝒅𝒅 𝟑𝟑𝟒𝟒𝒃𝒃 𝒃𝒃books and is the number of days. 𝒅𝒅

Example 3: Matching

Work in Partners…Match an equation, table, and graph that represent the same unit rate. You will need to cut apart the data sets and glue them onto the given sheet.

Exercises 1 - 3Students will complete the handout individually that contains Exercises 1 – 3. Students will glue this sheet into their notebook.

Lesson SummaryWhen comparing rates and ratios, it is best to find the unit rate. Comparing unit rates can happen across tables, graphs, and equations.

Evaluate Your Learning4321

How will you “Sharpen Your Saw”?