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Scaled Images

Scaled Images

Assessment

Presentation

Mathematics

7th - 8th Grade

Medium

CCSS
7.G.A.1, 8.G.A.3, RL.1.10

+4

Standards-aligned

Created by

Julianna Esposito

Used 10+ times

FREE Resource

10 Slides • 11 Questions

1

Scaled Images

Slide image

2

Open Ended

What is a Scaled Image? (also known as a scaled copy)

Where would we use a scaled image?

¿Qué es una imagen escalada? (también conocido como copia escalada)

¿Dónde usaríamos una imagen escalada?

3

A scaled image is a larger or smaller copy of an original shape as long as the new shape is stretched in a way that does not distort it.

¿Qué es una imagen escalada?

Una imagen escalada es una copia más grande o más pequeña de una forma original, siempre y cuando la nueva forma se estire de una manera que no la distorsione.

4

VIDEO TIME!

Malique is drawing scaled images!

https://us.sofatutor.com/mathematics/videos/relating-scale-drawings-to-ratios-and-rates

Junior needs to scale up his pet carrying case!

https://us.sofatutor.com/mathematics/videos/the-unit-rate-as-the-scale-factor

5

Open Ended

Question image

Something we use quite often are maps! Why would scaled images be important in relation to maps?

¡Algo que usamos muy a menudo son mapas! ¿Por qué las imágenes escaladas serían importantes en relación con los mapas?

6

Slide image

7

Open Ended

Question image

Is the new picture of the scaled image? Why or why not?

¿Es la nueva imagen de la imagen escalada? ¿Por qué o por qué no?

8

Slide image

9

Multiple Select

Question image

Which 2 options are the scaled images?

¿Qué 2 opciones son las imágenes escaladas?

1

A

2

B

3

C

4

D

5

E

10

To make a scaled copy, we multiply all the lengths in the original figure by the same number. This number is called the scale factor.


Slide image

11

Multiple Choice

Question image

What is the scale factor to go from the triangle on the right to the triangle on the left?

¿Cuál es el factor de escala para ir desde el triángulo a la derecha hasta el triángulo de la izquierda?

1

times 1.5

2

times 2

3

divided by 1.5

4

divided by 2

12

Slide image

13

Multiple Choice

Question image

What is the length of the missing side on the small triangle?

1

5

2

7

3

9

4

11

14

Slide image

15

Multiple Select

Question image

Which A is a scale image of the original A?

¿Cuál es una imagen a escala de la A original?

1

Figure 1

2

Figure 2

3

Figure 3

4

figure 4

16

Multiple Choice

Question image

What is the scale factor to go from the original triangle to Copy 1?
¿Cuál es el factor de escala para pasar del triángulo original a la copia 1?

1

+ 4

2

× 12\times\ \frac{1}{2}

3

÷ 2\div\ 2

4

× 2\times\ 2

17

Multiple Choice

Question image

Are these images scale copies?

1

Yes

2

No

3

I don't have enough information to say if they are scaled copies

18

Slide image

Cookie A is on the left and Cookie B is on the right

19

Slide image

Cookie A is on the left and Cookie B is on the right

20

Multiple Choice

Question image

From Denver to Chicago = 3 in. If the scale is 1 in = 300 miles, find the actual distance.

De Denver a Chicago 3 adentro. Si la escala es de 1 en 300 millas, busque la distancia real.

1

300 miles

2

1000 miles

3

900 miles

4

600 miles

21

Open Ended

What is a scaled image in your own words?

What is one way we can find the scale factor of a new image?

Why do we use scaled factors?

¿Qué es una imagen escalada en sus propias palabras? ¿Cuál es una manera de encontrar el factor escalada de una nueva imagen?

¿Por qué usamos factores escalados?

Scaled Images

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