Comparing Quantities with Ratios
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can use ratios to compare two quantities.
Part 1 of 4
Warm-up video
Khan Academy · 3:58Vetted channel
We don't generate video — this one is by Khan Academy 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 ratio shows the relationship between quantities of two different things.
- 2
The ratio of apples to oranges can be written as 6 to 9 or, in simplest form, 2 to 3.
- 3
The ratio of oranges to apples is 9 to 6, which simplifies to a ratio of 3 oranges to 2 apples.
Part 3 of 4
Practice
8 questions
What is a ratio used to describe?
Write the ratio 12:16 in its simplest form.
Part 4 of 4
Exit ticket
Quick comprehension check
“There are 8 dogs and 12 cats at a pet shelter. What is the ratio of dogs to cats in simplest form?”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson
