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Topic (Course) 
Technology 
Type 
$? 
Rating 

Real World Applications (Geome...

Perimeter, area, and volume (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to apply formulas and the relationship between perimeter and area for problem solving in real life situations.
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Effect of Dimension Changes on...

Perimeter, area, and volume (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how a change in a figure's dimensions affects its area.
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Conservation of Area

Perimeter, area, and volume (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates conservation of area given simple transformations on the original shape.
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Dividing a Triangle

Perimeter, area, and volume (Geometry) 
Java Applet 
Tool 

[0]

These two applets help you discover two ways to divide a triangle into two equal parts (in terms of area).
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GeoCalc

Perimeter, area, and volume (Geometry)+ 
Computer 
Tool 

[0]

Macintosh shareware for calculating the area, perimeter, sides, angles, and other measures of two and threedimensional shapes such as ellipses, rectangles, triangles, trapeziums, parallelograms, pol...
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Computing Combinations and Per...

Permutations (Discrete Math)+ 
Flash 
Support Material 

[0]

This minilesson introduces the fundamentals and important concepts from counting principles to compute combinations and permutations.
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Permutations

Permutations (Discrete Math)+ 
Flash 
Tool 

[0]

Flash tutorial introducing the formula P(n,k)=n!/(nk)!. College Cram charges access fees by the month or by the semester for most resources. To get a preview of their tools, see their free math mo...
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Permutations (Amsco Integrated...

Permutations (Math 7)+ 
Flash 
Support Material 

[0]

This minilesson explains permutation: an arrangement of objects or things in some specific order.
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Euclid's Elements, Book I, Def...

Perpendicular (Geometry) 
Java Applet 
Tool 

[0]

Gives Euclid's original definition of perpendicular lines and then examines the definition's validity and durability. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book I, Pro...

Perpendicular (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition demonstrates how to draw a line perpendicular to a given line, through a given point on the line. The guide then examines the structure of the proposition. To reset the applet, p...
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Euclid's Elements, Book I, Pro...

Perpendicular (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition demonstrates how to draw a line perpendicular to a given line, through a given point not on the line. The guide then examines the structure of the proposition. To reset the apple...
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Constructing a Perpendicular t...

Perpendicular (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep animated instructions on how to
construct a perpendicular to a given line through a given point off the line.
...
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Constructing a Perpendicular t...

Perpendicular (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep animated instructions on how to
construct a perpendicular to a given line at a given point on the line.
The an...
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Determine If Two Lines are Per...

Perpendicular Lines (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to determine if two lines are perpendicular by looking at their equations.
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Find Equation of a Line Perpen...

Perpendicular Lines (Algebra) 
Flash 
Support Material 

[0]

This minilesson explains how to find the equation of a line perpendicular to a given line.
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Identifying Special Angle Pair...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to identify special angle pairs, i.e. angles formed when a transversal cuts (or intersects) parallel lines.
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Relationships Among Special An...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains more about basic geometric figures and classifying angles according to their measures, and about more complex geometric relationships among them.
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Constructing Parallel and Perp...

Perpendicular and parallel lines (Geometry)+ 
Flash 
Support Material 

[0]

This minilesson explains how to construct parallel and perpendicular lines, using earlier lessons about the basics of compass and straightedge construction.
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Horizontal Machine

Perpendicular and parallel lines (Geometry) 
Java Applet 
Tool 

[0]

Figure out how the motion of this horizontal machine is defined using the properties of the interlocked rotating planks.
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Three Dimensional Sketching

Perspective (3D in 2D) (Math 7)+ 
Computer 
Lesson Plan 

[0]

This lesson provides directions for teaching students how to make three dimensional sketches with Geometer's Sketchpad.
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Plot Plans and Silhouettes

Perspective (3D in 2D) (Math 7)+ 
Java Applet 
Tool 

[0]

Visualization activity; given front and side views, devise a workable top view (with heights). Instructions and discussion built in.
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Areas of Regular Polygons and ...

Pi (Geometry)+ 
Sketchpad 
Activity 

[0]

Students manipulate the number of sides in a regular polygon, develop a formula relating the area and perimeter of the polygon, and use their result to develop a formula relating the circumference ...
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Graphs and Charts

Pictographs (Math 3)+ 
Computer 
Support Material 

[0]

Use these factsheets and worksheets to explain how title, labels, key, etc. provide information in a graph or chart. The unit also looks at how to obtain information from a pictogram, pie chart, bar c...
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Unexpected Answers

Pictographs (Math 7)+ 
Java Applet 
Lesson Plan 

[0]

Considers probability problems with unexpected and surprising answers.
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Chip Abacus

Place value (Kindergarten)+ 
Java Applet 
Tool 

[0]

Learn about carrying and digits using chips.
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