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Cut a piece of molding by subtracting polynomials. Pupils watch a video as the presenter works through an example of a word problem involving the subtraction of polynomials. The problem involves finding the remaining length of a piece of molding after a piece has been cut off. Polynomials represent lengths that require a polynomial subtraction problem to find the remaining length.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Provide several similar problems for practice
- Ask class members to create word problems that involve adding and subtracting of polynomials
Classroom Considerations
- Requires knowledge of subtracting polynomials
- This video is hosted on YouTube
Pros
- Uses colors to highlight like terms
- Provides a diagram to model the situation in the word problem
Cons
- None