What Is a Ratio? Comparing Two Amounts
I can describe a ratio relationship between two quantities in words and in numbers.
📘 Word Bank + Sentence Frames
ratiofor everyto (a : b)comparequantity
A ratio compares two amounts.
- We write it as a : b ("a to b").
- Frame: "For every ____ ____, there are ____ ____."
👀 See It: A Worked Example
A fruit bowl has these pieces:
🍎🍎🍎 🍌🍌
There are 3 apples and 2 bananas. The ratio of apples to bananas is 3 : 2. In words: "For every 3 apples, there are 2 bananas."
✏️ Your Turn
0 of 3 checks complete
1. A team has 5 forwards and 4 defenders. What is the ratio of forwards to defenders?
2. In a box: 🔵🔵🔵🔵 🟡🟡. The ratio of blue to yellow is…
3. "For every 2 cups of water, use 1 cup of rice." The ratio of water to rice is…
💬 Explain Your Thinking
Describe a ratio you can see in your classroom:
"The ratio of blank to blank is blank : blank. For every blank blank, there are blank blank."