The Size of the Scale Factor: IM 7.1.5
[url=https://im.kendallhunt.com/MS/teachers/2/1/5/preparation.html]“Scaled Relationships”[/url] from IM Grade 7 by [url=https://www.geogebra.org/m/gus8ffvr]Open Up Resources[/url] and Illustrative Mathematics. Licensed under the [url=https://creativecommons.org/licenses/by/4.0/]Creative Commons Attribution 4.0 license[/url].
Table of Contents
- Lesson
- Copy of IM 7.1.5 Lesson: The Size of the Scale Factor
Copy of IM 7.1.5 Lesson: The Size of the Scale Factor
Your teacher will give you a set of cards. On each card, Figure A is the original and Figure B is a scaled copy.[br][br]Sort the cards based on their scale factors. Be prepared to explain your reasoning.[br]
Using the same set of cards. Examine cards 10 and 13 more closely. What do you notice about the shapes and sizes of the figures? What do you notice about the scale factors?[br]
Using the same set of cards. Examine cards 8 and 12 more closely. What do you notice about the figures? What do you notice about the scale factors?[br]
What is the scale factor from the original triangle to its copy? Show your reasoning.
You can also [i]explain [/i]how you know here:
The scale factor from the original figure to its scaled copy is 3. Draw the scaled copy.
You can also [i]explain [/i]how you know here: