Apply polynomial multiplication to area. The short video in a large series shows the process of creating a polynomial formula for the area of a rectangle. Using the two expressions for the length and width of a rectangle, pupils see how to find the formula for the area and then evaluate it for a given value.

Concepts

multiplication binomials, binomials, quadratic applications, area, area formulas, substitution, evaluating expressions, area of rectangles

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Additional Tags

math

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Instructional Ideas

• Provide several rectangles with polynomial areas that evaluate to the same area size, though the polynomials are different

Classroom Considerations

• Requires the class to understand how to evaluate an expression
• Assumes learners know the process of multiplying two binomials

• This video is hosted on YouTube

Pros

• Uses colors to highlight steps within the process
• Solves the problem two different ways

Cons

• None

Common Core

SL.6.2 SL.9-10.2 MP5 MP6 6.EE.A.1 HSA-APR.A.1