Ratios
Lesson Objective
Student-Facing Learning Target:
Vocabulary:
Do Now:
Evaluate the following: 1.) -4(-3) =
2.) -4 + (-3) =
3.) =
4.) Simplify the fraction. 3 6
Part One; Writing Ratios
Example 1:
a.) If Jose missed 8 questions, how many did she get correct?
b.) If Jose missed 20 questions, how many did she get correct?
Example 2:
a.) Determine a ratio to describe the money in Pam's account to the money in her brother's account.
b.) If Pam has 40 dollars in her account, how much money does her brother have in his account?
Example 3:
Example 4:
Practice Problems:
1.) For every 8 hot dogs sold at the malt shop there are 3 hamburgers sold. What is the ratio of hot dogs sold to hamburgers sold?
2.) For every 5 PS3 games Robin owned, she had 8 Wii games.What is her ratio of Wii games to PS3 games?
3.) At the store for every 6 movies sold, there were 8 books sold. What is the ratio of books sold to movies sold?
4.) In a neighborhood for every 2 old homes there were 8 new homes. What is the ratio of old homes to new homes?
5.) At the thrift store, for every 3 long sleeve shirts, there were 2 short sleeve shirts. What is the ratio of long sleeve shirts to short sleeve shirts?
