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Technology 
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Converting Units and Rates

Converting between units (Math 6)+ 
Java Applet 
Activity 

[0]

This lesson puts some fun into dimensional analysis! I used to teach converting units/rates by demonstrating on the chalkboard (boring!), but my colleague created this lesson that is sure to spark stu...
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Area and perimeter of a rectan...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page showing how to find the area and perimeter of a rectangle
from the coordinates of its vertices. The rectangle can be either parallel to the axes o...
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Area and perimeter of a square...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page showing how to find the area and perimeter of a square
from the coordinates of its vertices. The square can be either parallel to the axes or rota...
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Area and perimeter of a trapez...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[2]

An interactive applet and associated web page showing how to find the area and perimeter of a trapezoid
from the coordinates of its vertices. The trapezoid can be either parallel to the axes o...
More: lessons, discussions, ratings, reviews,...

Definition and properties of a...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that show the definition and properties of a square
when applied in coordinate geometry.
The applet has a square, and the user can drag any vertex ...
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Definition and properties of a...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that show the definition and properties of a rectangle in coordinate geometry.
The applet has a rectangle with draggable vertices. As the user res...
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Definition and properties of a...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry.
The applet has a trapezoid with draggable vertices. As the user res...
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Perpendicular Slopes

Coordinate geometry (Geometry)+ 
TINspire 
Activity 

[0]

In this activity, students investigate the “negative reciprocal” relationship between the slopes of perpendicular lines. The final phase of the activity is appropriate for more advanced students as th...
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The bounding box (Coordinate ...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that show the definition and properties of the bounding box of a polygon or set of points. Also known as the circumscribed rectangle.
The bounding b...
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Traingle area, box method (Coo...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that calculate the area of a triangle using the box method in coordinate geometry.
The applet has a triangle with draggable vertices. As you drag t...
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Triangle area, formula (Coordi...

Coordinate geometry (Geometry)+ 
Flash 
Activity 

[0]

An interactive applet and associated web page that calculate the area of a triangle using the formula method in coordinate geometry.
The applet has a triangle with draggable vertices. As you dr...
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Coordinate Geometry Overview ...

Coordinate geometry (Geometry) 
Computer 
Tool 

[0]

A web page that introduces the concepts behind coordinate geometry.
Can be used as a reference for students to learn about the topic when away from class.
Has links to other related pages tha...
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Geoboard  Coordinate

Coordinate geometry (Geometry)+ 
Java Applet 
Tool 

[0]

Rectangular geoboard with x and y coordinates.
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Parallel lines (Coordinate Geo...

Coordinate geometry (Geometry)+ 
Flash 
Tool 

[0]

An interactive applet and associated web page that demonstrate the properties of parallel lines in coordinate geometry.
The applet presents two lines, each defined by a pair of draggable points....
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Perpendicular lines in coordin...

Coordinate geometry (Geometry)+ 
Flash 
Tool 

[0]

An interactive applet and associated web page that show how to determine of one line is perpendicular to another in coordinate geometry.
The principle used is that if two lines a re perpendicula...
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The Effects of Outliers

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the effects of outliers on data sets.
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The Regression Line

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Sudents investigate the relationship between a set of data points and a curve used to fit the data points.
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Correlation and the Regression...

Correlation (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also learn about Pearson's correlation coefficient: the measure of the linear associa...
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Dynamic Correlation

Correlation (Probability & Statistics) 
Java Applet 
Tool 

[0]

This applet is simple to use but can provide students with real insight into how to read scatterplots and into how correlation coefficients can be misleading. Once the applet is first loaded, click t...
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The Centroid and the Regressio...

Correlation (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the properties of the centroid and the regression line.
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Corresponding Angles  Math Op...

Corresponding angles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the corresponding angles
that are formed where a transversal crosses two lines. The applets cycles through the
four possible pai...
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Corresponding and Alternate An...

Corresponding angles (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates corresponding and alternate angles.
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Place Value Mathlets

Counting (Kindergarten)+ 
JavaScript 
Tool 

[0]

A collection of animated JavaScript applets for explaining the concept of place value and base 10 counting. The collection includes,
Grouping by Tens
Grouping Tens and Hundreds
Toke...
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Rings to Posts

Counting (Kindergarten)+ 
Flash 
Tool 

[0]

Click the rings to drag them onto the posts, filling the posts to the number written on the base.
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Number Grid Level 1

Counting (Math 2)+ 
Flash 
Tool 

[1]

First level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change...
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