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Technology 
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Inverses of 3 by 3 Matrices

Linear Algebra (PreCalculus)+ 
Java Applet 
Tool 

[0]

This applet is a calculator for finding inverses of 3 by 3 matrices, by calculating cofactors and determinants. The method is displayed fully, including cases of singular matrices which have no invers...
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Introduction to Linear Functio...

Linear Equations (Algebra) 
Java Applet 
Lesson Plan 

[0]

This lesson is designed to introduce students to the idea of functions composed of two operations, with specific attention to linear functions and their representations as rules and data tables, inclu...
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Math Forum Teacher Packet: TI...

Linear Equations (Algebra)+ 
TINspire 
Lesson Plan 

[0]

This packet contains a copy of the original problem used to create the activity, rationale and explanation behind the “Change the Representation” focal activity, and some thoughts on why this activity...
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Determine Whether a Point Lies...

Linear Equations (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to determine whether a point lies on a line with a given equation. It also explains what is the required condition for a point to lie on a given line.
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Explore general equation of a ...

Linear Equations (Algebra) 
Java Applet 
Tool 

[0]

Graph a line and vary its coefficients.
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Line in SlopeIntercept Form

Linear Equations (Algebra)+ 
Sketchpad 
Tool 

[0]

This sketch allows the manipulation of a line in slopeintercept form. On the first page, the coefficients m and b are restricted to multiples of 0.5. On the second page, they are unrestricted and can...
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Graphical linear function expl...

Linear Equations (Algebra)+ 
Java Applet 
Tool 

[0]

An interactive applet that allows the user to graphically explore the properties of a linear functions. Specifically,
it is designed to foster an intuitive understanding of the effects of chang...
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Linear Inequalities

Linear Equations (Algebra)+ 
Computer 
Tool 

[0]

Students create linear inequalities and systems of linear inequalities on a coordinate plane. This is like a graphing calculator with advanced viewing options.
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Formulas

Linear Formulas (Algebra) 
JavaScript 
Tool 

[0]

The user learns about formulas and how to solve word problems using formulas. After viewing examples, users can interactively test their understanding of formulas with a true/false quiz.
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Solving Inequalities (Algebra ...

Linear Inequalities (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to solve algebraic inequalities.
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Properties of Inequalities (Am...

Linear Inequalities (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains the transitive, addition, and subtraction properties of inequalities.
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Using Inequalities to Solve Pr...

Linear Inequalities (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to solve problems using inequalities.
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Solving Inequalities with Frac...

Linear Inequalities (Algebra)+ 
Flash 
Support Material 

[0]

This minilesson explains how to solve inequalities that contain fractional coefficients.
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Solving Simple Linear Inequali...

Linear Inequalities (Algebra) 
Flash 
Tool 

[0]

Flash tutorial introducing manipulation of a simple linear inequality to find the value of x. Be sure to make x's coefficient negative to get full information on this topic. College Cram charges ...
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Linear Inequalities

Linear Inequalities (Algebra)+ 
Java Applet 
Tool 

[0]

Students create linear inequalities and systems of linear inequalities on a coordinate plane. This is like a graphing calculator with advanced viewing options.
More: lessons, discussions, ratings, reviews,...

ZeGenie  Inequalities

Linear Inequalities (Algebra) 
Flash 
Tool 

[0]

Complete interactive lessons covering the basics of inequalities.
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Linear Programming Activity A ...

Linear Programming (Algebra) 
Shockwave 
Tool 
$ 
[0]

This site allows one access per day per computer free of charge. This applet allows students to establish an objective function, and then graph up to five constraints in different colors. Students c...
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Exploring Linear Programming

Linear Programming (Algebra) 
TINspire 
Tool 

[0]

A TINspire™ activity that introduces some of the concepts behind linear programming. It accompanies the TIPoW Caliyah's Cart (find link below).
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Systems of Linear Equations wi...

Linear Systems (Algebra) 
Java Applet 
Activity 

[0]

In these activities, you explore the steps involved in solving systems of linear equations. You’ll make observations about the effects of those operations on the solution sets of the systems. In Part ...
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Systems of Linear Equations (G...

Linear Systems (Algebra) 
Flash 
Support Material 

[0]

This minilesson introduces systems of linear equations and explains related concepts.
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Determine If a System of Equat...

Linear Systems (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to determine if a system of equations has no solution, that is, no points in common when the lines are graphed.
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Determine If a System of Equat...

Linear Systems (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to determine if a system of equations has infinite solutions, that is, its equations describe one line.
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Algebraic Solution of a Quadra...

Linear Systems (Algebra)+ 
Flash 
Support Material 

[0]

This minilesson explains how to solve a quadraticlinear system using substitution. A quadraticlinear system consists of two equations, one quadratic and one linear equation.
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Basic Inequalities Solver

Linear Systems (Algebra)+ 
JavaScript 
Tool 

[0]

The user can enter an inequality into the solver and the solver will return an exact and approximate answer to the inequality given.
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System Solver

Linear Systems (Algebra) 
Java Applet 
Tool 

[0]

Highlight how symbolic operations on a system of linear equations do (or do not) change the graphic or tabular representations of the system.
Note that the System Solver is a tool intende...
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