ALEX Lesson Plans
Subject: Mathematics (9  12), or Science (9  12) Title: Human Population Growth WebQuest
Description: This is a technologybased lesson plan that integrates science and math to determine dynamics in population growth.
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.
Subject: Mathematics (9  12) Title: Exponential Growth and Decay
Description: This lesson on exponential growth and decay involves a variety of teaching resources. There are a variety of websites used to teach and reinforce how to identify exponential growth or decay and how to solve problems relating to growth and decay. There is a lab provided that will help model these concepts being taught and computer based practice on these concepts. Videos are provided that give a picture image of how exponential growth and decay works. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
Subject: Mathematics (9  12), or Technology Education (9  12) Title: You Mean ANYTHING To The Zero Power Is One?
Description: This lesson is a technologybased project to reinforce concepts related to the Exponential Function. It can be used in conjunction with any textbook practice set. Construction of computer models of several Exponential Functions will promote meaningful learning rather than memorization.
Subject: English Language Arts (9  10), or Mathematics (9  12) Title: Rags to Riches or Riches to Rags?
Description: In this lesson students will apply the interest formulas to make the best investment decision for our fictional character Algebrea Calculique. The students will be provided with a story explaining the situation that Algebrea faces and the investment choices that she has. To present their findings and conclusion, the students will write an expository essay. This lesson integrates mathematics into the writing process.
Thinkfinity Lesson Plans
Subject: Mathematics Title: Predicting Your Financial Future
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Description: In this Illuminations lesson, students use their knowledge of exponents to compute an investment s worth using a formula and a compound interest simulator. Students also use the simulator to analyze credit card payments and debt. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Exact Ratio
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Description: This reproducible activity sheet, from an Illuminations lesson, features a series of questions pertaining to exact ratios and geometric sequences. In the lesson, students measure lengths on stringed musical instruments and discuss how the placement of frets on a fretted instrument is determined by a geometric sequence. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Health,Mathematics Title: Make a Conjecture
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Description: In this lesson, one of a multipart unit from Illuminations, students explore rates of change and accumulation in context. They are asked to think about the mathematics involved in determining the amount of blood being pumped by a heart. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics,Social Studies Title: The National Debt and Wars
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Description: This reproducible worksheet, from an Illuminations lesson, guides students as they collect information about the national debt, plot the data by decade and determine whether an exponential curve is a good fit for the data. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Radioactive Decay: A Sweet Simulation of HalfLife
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Description: In this Science NetLinks lesson, the second lesson in a threepart series about isotopes, radioactive decay, and the nucleus, students are asked to simulate radioactive decay by pouring small candies and counting which candies fall with their manufacturer's mark down or up. The exercise they go through of predicting and successively counting the number of remaining '' markside up'' candies should help them understand that rates of decay of unstable nuclei can be measured, that the exact time that a certain nucleus will decay cannot be predicted, and that it takes a very large number of nuclei to find the rate of decay. Thinkfinity Partner: Science NetLinks Grade Span: 9,10,11,12
Subject: Mathematics,Science Title: Shedding the Light
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Description: In this fourlesson unit, from Illuminations, students investigate a mathematical model for the decay of light passing through water. The goal of this investigation is a rich exploration of exponential models in context. Students examine the way light changes as water depth increases, conduct experiments, explore related algebraic functions using an interactive Java applet and analyze the data collected. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics Title: Flowing Through Mathematics
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Description: This student interactive, from Illuminations, simulates water flowing from a tube through a hole in the bottom. The diameter of the hole can be adjusted and data can be gathered for the height or volume of water in the tube at any time. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12
Subject: Mathematics, Science Title: Frosty the Snowman Meets His Demise: An Analogy to Carbon Dating
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Description: The purpose of this Science NetLinks lesson is to develop the idea that carbon dating is based on gathering evidence in the present and extrapolating it to the past. Students use a simple graph to extrapolate data to its starting point. Thinkfinity Partner: Science NetLinks Grade Span: 9,10,11,12
Subject: Mathematics,Science Title: Gather Data
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Description: In this lesson, one of a multipart unit from Illuminations, students explore the development of a mathematical model for the decay of light passing through water, in a rich exploration of exponential models in context. They conduct three experiments including a simulated ocean dive, using tinted Plexiglas to simulate water depth, and measuring light intensity within a column of water. Thinkfinity Partner: Illuminations Grade Span: 9,10,11,12

