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Topic (Course) 
Technology 
Type 
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Dividing a Square

Regular polygons (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates the problem with the way that the square is rearranged so that the area is changed by the manipulation.
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Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe an equilateral and equiangular pentagon within a given circle. The guide then examines the structure of the proposition. The To reset the applet, press "r"...
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Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to circumscribe an equilateral and equiangular pentagon about a given circle. The guide then examines the structure of the proposition. The To reset the applet, press ...
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe a circle within a given equilateral and equiangular pentagon. The guide then examines the structure of the proposition. The To reset the applet, press "r" ...
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to circumscribe a circle about a given equilateral and equiangular pentagon. The guide then examines the structure of the proposition. The To reset the applet, press "...
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe an equilateral and equiangular hexagon within a given circle. The guide then examines the structure of the proposition. The To reset the applet, press "r" ...
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe an equilateral and equiangular 15angle figure within a given circle. The guide then examines the structure of the proposition. The To reset the applet, pr...
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Constructing a hexagon inscrib...

Regular polygons (Geometry)+ 
Flash 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct
a hexagon inscribed in a circle using only a compass and straightedge.
The method begin...
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Demos for Related Rates Proble...

Related rates problems (Calculus) 
Computer 
Support Material 

[0]

This page includes a description of solution techniques for (timedependent) related rates problems, and a gallery of ten "movies" to illustrate different problems.
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Related Rates

Related rates problems (Calculus) 
Java Applet 
Tool 

[0]

Compare a runner's position and the rate of change of the length of his shadow.
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Linear Patterns with the Linea...

Represent (Math 7)+ 
Java Applet 
Activity 

[0]

How does changing the slope of a line affect the equation of that line? How might changing a part of an equation cause the related line to move? Explore these challenges using the Linear Transformer t...
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Linear Transformer

Represent (Math 7)+ 
Java Applet 
Tool 

[0]

Highlight the meaning of each component of a linear function's symbolic expression with this tool that links symbolic and graphic representations of translating (dragging) a line vertically or horizon...
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In the Dark with an Elephant T...

Representations (Math 6)+ 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, Ask Dr. Math archives, vocabulary, other resources.
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In the Dark with an Elephant

Representations (Math 6)+ 
Java Applet 
Tool 

[0]

Students are asked to investigate how the appearance of a graph changes, based on the scale of the graph and the region being viewed.
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Diagonals of a Rhombus

Rhombus (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration, using Geometer's Sketchpad, of the construction and diagonals of a rhombus.
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Area of a Rhombus  Math Open ...

Rhombus (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a rhombus.The user can drag the vertices of the rhombus and the other points change automatically to ensure it remains a ...
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Perimeter of a rhombus  Math...

Rhombus (Geometry)+ 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a rhombus.
A rhombus is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously rec...
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Numerical Approximations of De...

Riemann and trapezoidal sums (Calculus) 
Computer 
Support Material 

[0]

Describes and compares lefthand, righthand, trapezoidal, midpoint, and Simpson's rules for approximating an integral.
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Numerical integration rules

Riemann and trapezoidal sums (Calculus)+ 
Java Applet 
Tool 

[0]

Use lefthand, righthand, midpoint, trapezoidal, and Simpson's rules to approximate the area under a specific rational function.
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Riemann Sums

Riemann and trapezoidal sums (Calculus) 
Java Applet 
Tool 

[0]

Compare upper and lower sum approximations to an integral.
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Numerical Integration Tutorial

Riemann and trapezoidal sums (Calculus) 
Java Applet 
Tool 

[0]

Select one of the listed functions, choose endpoints, and compare righthand, midpoint, and trapezoidal approximations to the definite integral.
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Midpoint and Trapezoidal Riema...

Riemann and trapezoidal sums (Calculus) 
Java Applet 
Tool 

[0]

A Java applet that introduces Riemann sums based on the midpoint and trapezoid methods, with questions to answer using the applet. Includes a rescalable presentation version with large fonts.
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Integrals Using Riemann Sums

Riemann sums and integrals (Calculus) 
Calculator 
Activity 

[0]

A discovery worksheet that allows students to find the formal definition for Riemann sums. It ends with practice questions that students can do on their own. Included in the teacher sheets is an art...
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Riemann Integral

Riemann sums and integrals (Calculus) 
Computer 
Support Material 

[0]

Discusses the integral as a sophisticated form of summation.
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Areas

Riemann sums: L, R, and M. (Calculus) 
Computer 
Support Material 

[0]

Compare the estimates for the area under part of a parabola given by inscribed and circumscribed rectangles.
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