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This Proportions: Lesson instructional video also includes:
Proportionally, one doesn't see much of cross multiplying in geometry. The portion of extensive playlist on geometry reviews proportions. Using properties of equality, the video shows why cross multiplying works for proportions.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Spend some time going over the different ways to write proportions
Classroom Considerations
- Individuals should be comfortable with ratios and equivalent ratios
- Assumes learners know the properties of equality
- This video is hosted on YouTube
Pros
- Works several problems involving proportions
- Contains a link to more proportion resources
Cons
- None