Exploring Scale and Scale Drawings

The video tutorial introduces the concept of scale, explaining its importance in maintaining proportions when enlarging or reducing images. It differentiates between scale drawings and models, and demonstrates how to use scale to solve real-world problems, such as calculating distances on maps. The tutorial also covers how to determine scale and apply it in various contexts, including architectural blueprints and model creation.

What must be done to ensure an image looks the same when it is enlarged or reduced?

• Change only the height

• Change only the width

• Change the color

• Change all measurements by the same proportion

Tags

CCSS.8.G.A.3

What is a scale drawing?

• A three-dimensional model

• A two-dimensional proportional drawing

• A painting

• A photograph

Tags

CCSS.7.G.A.1

How is a scale model different from a scale drawing?

• It is a photograph

• It is two-dimensional

• It is three-dimensional

• It is not proportional

Tags

CCSS.7.G.A.1

If 1 inch on a map represents 20 miles, how many miles do 2 inches represent?

• 20 miles

• 10 miles

• 40 miles

• 30 miles

Tags

CCSS.6.RP.A.3B

What is the actual distance if 1 and 3/4 inches on a map represents 20 miles per inch?

• 35 miles

• 30 miles

• 25 miles

• 40 miles

Tags

CCSS.6.RP.A.3B

If the actual distance is 60 miles, how many inches would it be on a map with a scale of 1 inch to 15 miles?

• 5 inches

• 4 inches

• 3 inches

• 2 inches

Tags

CCSS.7.G.A.1

What are the actual dimensions of a classroom if the floor plan measures 3 inches by 4 inches with a scale of 2 inches to 5 feet?

• 6 feet by 8 feet

• 7.5 feet by 10 feet

• 10 feet by 12 feet

• 15 feet by 20 feet

Tags

CCSS.7.G.A.1

How do you find the scale of a model if the model is 15 feet tall and the actual object is 1.5 inches tall?

• Divide the model height by the actual height

• Add the model height to the actual height

• Multiply the model height by the actual height

• Subtract the actual height from the model height

Tags

CCSS.7.G.A.1

What is the scale if a model of a roller coaster hill is 6 inches and the actual hill is 210 feet?

• 1 inch to 20 feet

• 1 inch to 40 feet

• 1 inch to 30 feet

• 1 inch to 35 feet

Tags

CCSS.7.G.A.1

If a school property is 90 feet wide in real life and 9 inches wide in a drawing, what is the scale?

• 1 inch to 5 feet

• 1 inch to 20 feet

• 1 inch to 10 feet

• 1 inch to 15 feet

Tags

CCSS.7.G.A.1