9/14/26 What are Scaled Copies?

9/14/26
Lesson 1.1.4 - What are Scaled Copies

I will.........

- tell whether or not a figure is a scaled copy of another figure

- describe some characteristics of a scaled copy
-Let's explore scaled copies

Vocabulary: scaled copy

Warm Up - Page 2

Video on resizing pictures and a Geogebra activity that allows you to resize pictures.

Open Ended

You saw five portraits labeled A to E in the GeoGebra activity. Pick ONE portrait and describe how it is the same as or different from the original portrait.

​Warm-Up Page 3

Look and see how each of the portraits compare with the original.

​Let's Talk Fun Houses

You go through a fun house and you stand in front of a mirror.......and what you see isn't what you'd expect. The mirrors are curved so the picture looking back at you is different.

1st vocab term - Scaled Copy

A scaled copy is a copy of an image where every length in the original image is multiplied by the same number. 

For example, if a picture is 3 feet long and 2 feet tall, and you multiply the dimensions by 2, now the picture would be 6 feet long and 4 feet tall.

​Drawings 1 and 2 are the same shape as the original, but the sizes are different. (Yes, scaled copies can be smaller than the original; not just larger).

​​Scaled Copies

​Drawings 1 and 2 have different shapes. Drawing 1 is more spread out. Drawing 2 is more narrow.

​​NOT Scaled Copies

Draw

Look at the Original. 3 of these are scaled copies of the original. Circle the 3 scaled copies.

​Remember this about scaled copies

• every segment is the same number of times as long as the matching segment in the original drawing

• all segments keep the same relationships as in the originalHappy teaching!

Multiple Select

Which figures are scaled copies of the original A?

Select the two correct answers.

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Categorize

Options (3)

Organize these options into the right categories

1 figure is a scaled copy.

2 figures are not scaled copies.

Scaled Copy

Not Scaled Copy

Explore - Page 6

Geogebra activity where you look at 10 polygons and you match the scaled copies into five groups of two.

Answers can be checked on page 7.

Make sure you click on the submit for review button if you are attending live. If you are watching the recording, you must answer all questions

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​First Edio math lesson is done!