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Lesson Plans (13) A detailed description of the instruction for teaching one or more concepts or skills. Interactives/Games (1) A learning object that requires a user's involvement. Learning Activities (5) Any activity that would enhance a lesson or unit in order to help the learner master an objective 
and/or acquire a skill.  Examples include, but are not limited to, online tutorials, experiments, 
demonstrations, and hands-on activities.


ALEX Lesson Plans


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Subject: Mathematics (9 - 12), or Science (9 - 12)
Title: Human Population Growth WebQuest
Description: This is a technology-based lesson plan that integrates science and math to determine dynamics in population growth.


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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.


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Subject: Mathematics (9 - 12), or Technology Education (9 - 12)
Title: You Mean ANYTHING To The Zero Power Is One?
Description: This lesson is a technology-based 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.


Thinkfinity Lesson Plans


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Subject: Mathematics
Title: Automobile Mileage: Age vs. Mileage     
Description: In this lesson, one of a multi-part unit from Illuminations, students plot data about automobile mileage and interpret the meaning of the slope and y-intercept of the least squares regression line. By examining the graphical representation of the data, students analyze the meaning of the slope and y-intercept of the line and put those meanings in the context of the real-life application. This lesson incorporates an interactive regression line applet.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Rates of Change in Pick's Theorem     
Description: In this lesson, one of a multi-part unit from Illuminations, students use a spreadsheet to investigate rates of change among various figures created on a geoboard. The coefficients of Pick s Theorem are easily determined from these rates of change.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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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
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Graph Chart     
Description: This reproducible transparency, from an Illuminations lesson, contains the answers to the similarly named student activity in which students identify the independent and dependent variables, the function, symbolic function rule and rationale for a set of graphs.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Health,Mathematics,Science
Title: Cardiac Output, Rates of Change, and Accumulation     
Description: In this unit of four lessons, from Illuminations, students explore the measurement of the amount of blood being pumped by a heart. The measurement is based upon two common problems: (1) a flow rate and accumulation problem and (2) a concentration problem.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics,Science
Title: Shedding the Light     
Description: In this four-lesson 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



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Subject: Mathematics,Social Studies
Title: The National Debt and Wars     
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



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Subject: Health,Mathematics
Title: Make a Conjecture      
Description: In this lesson, one of a multi-part 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



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Subject: Mathematics
Title: Exact Ratio     
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



Web Resources


Lesson Plans


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Drug Filtering (Exponential Decay)
http://illuminations...
In this lesson, students observe a model of exponential decay, and how kidneys filter their blood. They will calculate the amount of a drug in the body over a period of time. Then, they will make and analyze the graphical representation of this exponential function.

Interactives/Games


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Graphing Exponential Functions
http://www.softschoo...
This interactive graph lets students explore the different aspects of exponential graphs.

Learning Activities


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Rate of Growth
http://mathbits.com/...
In the learning activity M & M Lab, students use their graphing calculators to investigate rate of growth and exponential regressions. The learning activity includes the instructions and lab sheet to complete the population activity using a graphing calculator.

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Rate of Decay
http://mathbits.com/...
Students use their graphing calculators to investigate rate of decay and exponential regressions.

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Graphing Exponential Functions
http://www.softschoo...
This interactive graph lets students explore the different aspects of exponential graphs.

Thinkfinity Learning Activities


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Subject: Mathematics
Title: Two Terrains     
Description: In this interactive from Illuminations, students learn about ratios while identifying the best path for a vehicle, depending on whether it has better on‑road or off‑road performance.
Thinkfinity Partner: Illuminations
Grade Span: 9,10,11,12



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Subject: Mathematics
Title: Flowing Through Mathematics     
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



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