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Topic (Course) 
Technology 
Type 
$? 
Rating 

Data Games: Proximity

Linear relationships (Math 7)+ 
Computer 
Tool 

[0]

Students shoot a ball and earn higher scores the closer they are to hitting a target. They can improve their scores by interpreting data from the linear model that relates the distance of the target t...
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Data Games: Floyd's of Fargo

Linear relationships (Math 7)+ 
Computer 
Tool 

[0]

Students find the optimal price for an insurance company premium in this game by interpreting data and applying their understanding of linear and quadratic models. [Access requires setting up a (free)...
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Apples and Oranges 1 Decimal

Linear relationships (Math 7)+ 
Android 
Tool 
$ 
[0]

This application is a basic tool for learning algebra. Users try to solve a system of linear equations with two equations and two unknown variables. It is based on the same problem used in the free ap...
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TIPoW: Sam and Teri's Bank Ac...

Linear relationships (Math 7)+ 
TINspire 
Technology PoW 

[0]

Use your TINspire to consider this scenario and question: Sam and Teri have bank accounts. Sam always withdraws money; Teri always saves it. When will they have equal balances  or will they ever?
...
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Linear Approximations: Quiz

Local linearity (Calculus) 
Computer 
Activity 

[0]

A quiz (with answers) on derivatives as the best linear approximations to functions.
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Principles of Calculus Modelin...

Local linearity (Calculus) 
Computer 
Activity 

[0]

Exercises on derivatives as the best linear approximations to functions (PDF).
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Zoom

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

Zoom in on various functions, some differentiable and some not.
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Derivatives of Trigonometric F...

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

Zoom in on graphs of the sine and cosine functions.
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Linear Approximations

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

Zoom in on a given function, or compare the function with a linear approximation at the origin.
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Tangent Lines

Local linearity (Calculus) 
Computer 
Tool 

[0]

An animation of zooming in on the function f(x) = 5^x at x=0 until the function and its tangent line appear to coincide.
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Tangent Lines

Local linearity (Calculus) 
Flash 
Tool 

[0]

Animated description of a rigorous method to determine how accurate an approximation to a function the tangent line at a given point is.
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Linear Approximations

Local linearity (Calculus) 
JavaScript 
Tool 

[0]

Generate tables to compare the values of a function of the form f(x) = x^n and the approximation by a particular tangent line.
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Linear Approximations

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

Investigate the error of various linear approximations to a function.
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Error Function

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

Investigate the error function for different curves and different approximations to those curves.
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Linear Approximations

Local linearity (Calculus) 
Computer 
Tool 

[0]

RealMedia movies on derivatives as the best linear approximations to functions.
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Linear Approximations

Local linearity (Calculus) 
Java Applet 
Tool 

[0]

A Java applet that illustrates the use of the derivative in finding a linear approximation to a function, with questions to answer using the applet. Includes a rescalable presentation version with la...
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Box Volume

Local min / max (Algebra II)+ 
Sketchpad 
Tool 

[0]

Make an opentop box from a sheet of paper by cutting squares out of the corners. See how the volume of the box changes as the sides of the squares change. The link to the tool itself downloads the ...
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Evaluate Value of a Logarithmi...

Logarithmic Functions (Algebra II) 
Flash 
Support Material 

[0]

This minilesson explains how to estimate values of logarithmic expressions.
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Solving Assorted Equations usi...

Logarithmic Functions (Algebra II) 
Flash 
Support Material 

[0]

This minilesson explains how to use the laws of logarithms to simplify logarithmic equations and apply these in solving assorted word problems.
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Convert Logarithmic Expression...

Logarithmic Functions (Algebra II) 
Flash 
Support Material 

[0]

This minilesson explains a property of logs that lets you change bases by simple division.
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Is a Logarithmic Statement Som...

Logarithmic Functions (Algebra II) 
Flash 
Support Material 

[0]

This minilesson explains the process of using reasoning and logic to check whether an logarithmic statement is sometimes true, always true, or never true.
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Proof as Explanation: Distance...

Logic and proof (Geometry)+ 
Sketchpad 
Activity 

[0]

Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the activity itself is to a zip file that contains both the...
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Proof as Discovery: Kite Midpo...

Logic and proof (Geometry)+ 
Sketchpad 
Activity 

[0]

Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the activity itself is to a zip file that contains both the activi...
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Proof as Verification: Areas

Logic and proof (Geometry)+ 
Sketchpad 
Activity 

[0]

Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ...
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Ask Dr. Math FAQ: About Proofs

Logic and proof (Geometry) 
Computer 
Support Material 

[0]

Questions on "what is a proof?" answered by the math doctors of the Math Forum's Ask Dr. Math service.
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