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 Lesson Plans (5)

## ALEX Lesson Plans

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Subject: Mathematics (9 - 12)
Title: Now, where did THAT come from? Deriving the Quadratic Formula
Description: Generally, teachers expect students to memorize the quadratic formula and to know that you use it after exhausting all other means of solving a quadratic equation, i.e. as a last resort. This technology-based lesson is designed to assist students with deriving the formula on their own. Students must first be familiar with complex numbers and the process of “completing the square.” This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.

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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: 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.

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Subject: Finance (9 - 12), or Mathematics (9 - 12)
Title: Liquidity for Success
Description: This lesson will input values to calculate financial ratios and intepret the information derived from the calculations. This is a Commerce and Information Technology lesson plan.

## Thinkfinity Lesson Plans

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Subject: Mathematics,Science
Title: Modeling Orbital Debris Problems
Description: In this lesson, from Illuminations, students examine the problem of space pollution caused by human-made debris in orbit to develop an understanding of functions and modeling. The lesson gives students an opportunity to use spreadsheets, graphing calculators, and computer graphing utilities.
Thinkfinity Partner: Illuminations