Teach your classes how to solve a simple proportion. A video tutorial explains the process of cross multiplying to solve a basic proportion. The instructor reinforces the meaning of a proportion by solving an example by inspection.
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CCSS:
Adaptable
Instructional Ideas
- Review equivalent fractions prior to the lesson
Classroom Considerations
- Learners should be fluent with simplifying fractions and solving simple equations
- Ensure individuals have access to the Internet if assigning the video as homework
Pros
- Explains the relationship between ratios and proportion before solving
Cons
- Uses the cross multiplying shortcut without explaining why it works
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