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 Lesson Plans (5) Interactives/Games (2) Learning Activities (2)

## ALEX Lesson Plans

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Subject: Mathematics (9 - 12)
Title: Zero Product Property
Description: The zero product property allows you to solve a quadratic equation by converting it into two linear equations.  This is a common strategy of algebra- to break down a problem into simpler parts, each solved by previously learned methods.

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Subject: Mathematics (9 - 12)
Title: Discover the Roots of a Polynomial Function
Description: In this lesson, students will be re-introduced to the Four Step Problem - Solving Plan.  The plan will be used as a 'checks and balance' tool for discovering the roots (solutions) of polynomial functions.  Students will: *Explore the problem - identify what is given and what they are asked to find. *Develop a plan - look for a pattern, make a model, solve a simpler but related problem.                           *Solve the problem - carry out the plan *Examine the solution - check the results with the conditions in the problem, check the reasonableness of the solution

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Subject: Mathematics (9 - 12), or Technology Education (9 - 12)
Title: Family Ties:  Parabolas
Description: This lesson allows students to manipulate the parameters while using the vertex form of the equation of a parabola to see the effects on the graph.  The spreadsheet can be altered for other functions.This lesson plan was created as a result of the Girls Engaged in Math and Science University, GEMS-U Project.

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Subject: Mathematics (9 - 12)
Title: "Factoring by Mack"
Description: This strategy for factoring trinomials will eliminate the trial-and-error method used in most textbooks.The lesson will be a direct teaching lesson. With the teacher lecturing and the students taking notes and then having the students break up into groups to solve sample problems.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

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Subject: Mathematics (9 - 12)
Title: Classifying Complex Numbers
Description: This lesson helps students distinguish between strictly complex numbers, strictly real numbers and strictly imaginary numbers while learning that real numbers and imaginary numbers are subsets of the set of complex numbers.

## Web Resources

### Interactives/Games

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Learn about graphing polynomials. The shape of the curve changes as the constants are adjusted. View the curves for the individual terms to see how they add to generate the polynomial curve.

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Online Algebra Problem Solver
http://www.algebra-o...
Online Algebra Solver allows students to create equations related to a variety of areas of math and solve them online.

### Learning Activities

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