Writing & Solving Proportions Lesson
Presentation
•
Mathematics
•
6th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Lynn Rohlfing
Used 221+ times
FREE Resource
16 Slides • 6 Questions
1
TAKE NOTES AS YOU COMPLETE THIS LESSON
2
A proportion is 2 equivalent ratios.
We can use proportional reasoning to solve problems.
3
She has 24 quarts of Blazing Blue paint. How many quarts of Ruby Red does she need?
4
She has 24 quarts of Blazing Blue paint. How many quarts of Ruby Red does she need?
5
She has 24 quarts of Blazing Blue paint. How many quarts of Ruby Red does she need?
16 quarts of Ruby Red paint
6
7
The ratio of dogs to cats is 5 to 7. There are 25 dogs. Write and solve a proportion to find the total number of animals
8
the ratio of dogs to cats is 5 to 7. There are 25 dogs. Write and solve a proportion to find the total number of animals
Now we need to set up a proportion
9
the ratio of dogs to cats is 5 to 7. There are 25 dogs. Write and solve a proportion to find the total number of animals
10
MULTIPLY BY 5
11
BUT.........
12
WHAT IS THE TOTAL NUMBER OF ANIMALS?????
13
Set up a proportion of men over women.
14
15
3 x 7 = 21
4 x 7 = 28
16
17
Multiple Choice
The ratio of boys to girls is 3 to 2. If there are 12 boys, how many girls are there?
8
4
16
11
18
Multiple Choice
The ratio of boys to girls is 3 to 2. If there are 12 boys, how many total students are there?
20
8
16
14
19
Multiple Choice
4
12
3
2
20
Multiple Choice
21
Multiple Choice
The ratio of boys to girls in the club is 2:3. There are 10 boys in a club.Use a proportion to find the total number of people in the club.
35
15
25
90
22
Multiple Choice
In a certain apartment building, the ratio of people to cars is 3:5. If there are 30 people, how many cars are there?
TAKE NOTES AS YOU COMPLETE THIS LESSON
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