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 Lesson Plans (4)

## ALEX Lesson Plans

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Subject: Mathematics (9 - 12)
Title: Polynomial Subtraction
Description: Students will review the meaning of vocabulary relevant to subtracting polynomials such as opposites and the definition of subtract.  They will be presented with examples of subtracting polynomials both vertically and horizontally.  They will also be given ample opportunities to apply this new skill through game play.

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Subject: Mathematics (9 - 12)
Title: Conquering Polynomials
Description: In this lesson, students will be introduced to polynomials.  A polynomial is a made up of terms, which are algebraic expressions combined by addition or subtraction.  In a polynomial, there is no expressions that involve dividing by the variable or taking any root of a variable.

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Subject: Mathematics (9 - 12)
Title: Polynomials Divided by Monomials
Description: Investigation of division of polynomials by mononials. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

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Subject: Business, Management, and Administration (9 - 12), or Mathematics (9 - 12)
Title: What's The Real Cost of That Car?
Description: This is a Commerce and Information Technology lesson plan. A project requiring research, critical thinking and complex decision-making about factoring all the costs of purchasing a large ticket item... a car.

## Thinkfinity Learning Activities

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Subject: Mathematics
Title: A Geometric Investigation of (a + b)2
Description: This student interactive, from Illuminations, allows students to explore a geometric explanation of why (A + B) squared = A squared + 2AB + B squared. The page includes directions for using the interactive as well as hints to help students understand this demonstration.
Thinkfinity Partner: Illuminations