What is Proportion?
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Objective
I can define "proportion" and identify the proportion that represents a proportional relationship.
Part 1 of 4
Warm-up video
mathantics · 10:30Vetted channel
We don't generate video — this one is by mathantics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
A proportion is two equivalent ratios that are set equal to each other.
- 2
In order for two ratios to be equivalent, they must have the same value and the same units.
- 3
If three of the values in a proportion are known, you can use cross-multiplication to solve for the unknown value.
Part 3 of 4
Practice
7 questions
What is a proportion?
Which of the following statements is necessary for two ratios to form a proportion?
Part 4 of 4
Exit ticket
Quick comprehension check
“Which of the following represents a proportion? Explain why. A) 3 books / 6 days = 9 books / 18 days B) 4 apples / 8 dollars = 2 oranges / 4 dollars C) 5 miles / 1 hour = 10 miles / 3 hours”
Sample answer included in the free materials
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