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Topic (Course) 
Technology 
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Perpendicular Bisector of a Se...

Perpendicular (Geometry)+ 
Java Applet 
Tool 

[1]

Use this applet to find out how to construct the perpendicular bisector of a line segment. From Illuminations' IGD: Interactive Geometry Dictionary.
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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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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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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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Angles and Parallel Lines

Perpendicular and parallel lines (Geometry) 
Java Applet 
Tool 

[1]

Three applets that demonstrate the concepts of vertical angles, corresponding angles, alternate angles, transversal lines, and how parallel lines effect these relations.
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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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3D Object Viewer

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[1]

Applet contains orthographic projections (static) and perspective drawings (dynamic) of 8 different objects; useful for building visualization skills. Toggle between "drawing" view and "3d model" vi...
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Building Houses

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[9]

Provides a "building pad" for constructing block houses. Building pad is dynamic; top, front, and side views of constructed objects are shown.
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Building Houses with Side View...

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[22]

This provides a visualization challenge. Front, right, and top views, and the number of blocks used, are shown; user constructs a block figure (dynamic, perspective drawing) to match (10 different fi...
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Colouring Sides 1

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[9]

This tool presents a 3d drawing along with four 2d views. Choose the one 2d figure that corresponds to the colored face on the 3d figure. These exercises in spatial visualization become more chall...
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Colouring Sides 2

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[3]

Eight 3d objects are shown in perspective and orthographic views. Some faces in the orthographic views are colored; user colors appropriate faces in the perspective view. Twenty variations shown, w...
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Guess The View

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[6]

Students are given a 3d view of an object, and then given a 2d view of the object. Students must choose which of 6 views is being displayed from a list including front view, right side view, left si...
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Rectangular Prism Volume

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[1]

The classic "box folding problem." This applet demonstrates the calculation of the volume of a rectangular prism. What height gives the largest volume?
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Rotating Houses

Perspective (3D in 2D) (Math 6)+ 
Java Applet 
Tool 

[2]

Students are presented with a 3d figure created with blocks that can be rotated and flipped using a mouse. The figure must be rotated until it matches a 2d representation of one of the views. There ...
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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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Bead Numbers

Place value (Math 1)+ 
Flash 
Activity 

[0]

This activity uses an interactive abacus to help develop and reinforce pupils' understanding of place value. The abacus has three pegs onto which beads are dropped, representing units, tens, and hundr...
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Birmingham Grid for Numbers (P...

Place value (Math 1)+ 
JavaScript 
Tool 

[0]

Use this tool to reinforce students' understanding of place value. Students choose values from groups of units, tens, and hundreds, or decimal values, to reach the target number. Versions of this acti...
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DigitWize

Place value (Math 1)+ 
Flash 
Tool 

[0]

Choose integers or numbers with decimal places, then try to make up the target number by choosing numbers from the units, tens, hundreds, depending on your original choice. Available in Arabic, Bengal...
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