Math Curriculum
Level D
Unit: Geometry
Lesson 7.1.5 The Size of the Scale Factor
Instructor Materials
- Teacher guide
- Slides
- Practice Problems resource
- CCRS standard: 7.G.1
- Learning goal: Describe (orally and in writing) how scale factors of 1, less than 1, and greater than 1 affect the size of scaled copies. Explain and show (orally and in writing) how to recreate the original figure given a scaled copy and its scale factor. Recognize (orally and in writing) the relationship between a scale factor of a scaled copy to its original figure is the “reciprocal” of the scale factor of the original figure to its scaled copy.
- 7.1 Assessments and Related Lessons
Student Materials
Used with permission:
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2. Adaptations and updates to IM K-5 Math are copyrighted 2019 by Illustrative Mathematics®, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
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