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Ratios and Scale Drawings
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Ratios and Scale Drawings
📚 Part 1: Understanding Ratios and Scale
1. Which of these shows a ratio?
3:4
45%
1 inch = 3 feet
25
2. A scale drawing shows 1 inch = 4 feet. If the drawing shows a room that is 3 inches long, how long is the real room?
7 feet
12 feet
3 feet
16 feet
3. Check all that show equivalent ratios to 2:3:
4:6
6:9
3:2
8:12
4. What does a scale of 1 inch = 2 feet mean?
Every inch on the drawing represents 2 feet in real life
Every foot in real life equals 2 inches on the drawing
The drawing is 2 times bigger than real life
The drawing shows 2% of the real size
✏️ Part 2: Problem Solving
5. A map has a scale of 1 inch = 50 miles. The distance between two cities on the map is 3.5 inches. What is the real distance between the cities?
Real distance: _____________ miles
6. In a scale drawing of a playground, the slide is 2 inches tall. If the scale is 1 inch = 6 feet, how tall is the real slide?
Real height: _____________ feet
7. A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to use 6 cups of flour, how many cups of sugar do you need?
Sugar needed: _____________ cups
8. Explain in your own words what it means when two ratios are equivalent:
🎯 Part 3: Create Your Own
9. Draw a simple rectangle below and label it as a scale drawing. Create your own scale (example: 1 inch = __ feet) and show the measurements.
My scale: 1 inch = _____________ feet
10. Extension Challenge: A model car is built using a scale of 1:24. This means 1 inch on the model equals 24 inches on the real car. If the model car is 8 inches long, how many feet long is the real car?
Real car length: _____________ feet
I Can Statements - Check off what you accomplished today:
I can identify and create equivalent ratios
I can use scale drawings to find missing dimensions
I can solve real-world problems using ratios and proportions
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