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Evaluating expressions really is a simple process, so make sure it's easy for your class! Pupils evaluate and simplify an expression of the form (a^2+b^2)/(a+b) for given values of a and b. They see an example of this process through an explanatory YouTube video.
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Concepts
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Instructional Ideas
- Pause the video at various times to have learners consider next steps
Classroom Considerations
- Scholars must be familiar with integer operation rules
- There is a separate video for example two
- This video is hosted on YouTube
Pros
- Shows how to check the answer on a calculator
Cons
- Very limited in scope