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This Negative Scale Factor assessment also includes:
Class members investigate the effect of a negative scale factor dilation on coordinate shapes as they watch a short video that shows an example of a geometric figure undergoing a dilation with a negative scale factor. Learners then try a few problems on their own.
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Concepts
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Instructional Ideas
- Assign the worksheet as homework
Classroom Considerations
- Resource assumes previous experience with scale factors
- Lesson is written for pupils studying for the GCSE, but is still appropriate for use by US learners
Pros
- Well-drawn graphs help make the concept clear
Cons
- Viewers may be confused by the use of enlarge even when scale factor is less than one