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Topic (Course) 
Technology 
Type 
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The Relaxation function proble...

Numerical soln. of diff. eqns. (Calculus) 
Computer 
Activity 
$ 
[0]

The worksheet presents some thoughts about the plane strain problem of the viscous orthotropic composite materials cylinder under internal and external pressure with respect to using the direct met...
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Fossil Fuel Emissions and the ...

Numerical soln. of diff. eqns. (Calculus) 
JavaScript 
Tool 

[0]

Explore this model of the carbon cycle to investigate whether to buy a hybrid car or a regular gasfueled car. Change the parameters of the modeled system and examine the effects on the system in grap...
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NA_WorkSheet Demo

Numerical soln. of diff. eqns. (Calculus) 
Java Applet 
Tool 

[0]

The NA_WorkSheet Demo (beta version) is a collective aggregation of algorithms coded in Java that implements various Numerical Analysis solutions/techniques in one easy to use open source tool. The to...
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PEEI: a computer program for t...

Numerical soln. of diff. eqns. (Calculus) 
Computer 
Tool 

[0]

The program PEEI v.2.0.0.0 calculates numerical solutions of systems of partial differential equations.
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Plate Tectonics and the Rock C...

Numerical soln. of diff. eqns. (Calculus) 
JavaScript 
Tool 

[0]

Change the parameters of this model of the earth's rock cycle to find out how the crust formed, what is currently happening to it, and what could happen in the future.
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The Carbon Cycle

Numerical soln. of diff. eqns. (Calculus) 
JavaScript 
Tool 

[0]

Explore the results of varying carbon stocks and fuel emissions on the carbon cycle in this simulation. Results are displayed in graphs with the option of tables.
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Triangle Geometry

Obtuse (Geometry) 
Java Applet 
Activity 

[1]

This eModule presents realworld problems that motivate students to work with triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles and s...
More: lessons, discussions, ratings, reviews,...

Triangle Geometry

Obtuse (Geometry) 
Java Applet 
Lesson Plan 

[1]

This eModule presents realworld problems that motivate students to work with triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles and s...
More: lessons, discussions, ratings, reviews,...

Alphabet Geometry  Angles

Obtuse (Geometry) 
Flash 
Tool 

[0]

What can you learn about angles by looking at letters? Look at the letters V, K, and L and learn about acute, obtuse, and right angles. While there, take a look at the letter X and learn about verti...
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Angle: An Illustrated Classifi...

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

An interactive Java applet that displays the degree measure of userdefined angles along with the labels according to the common classification: acute, right, etc. An option is to show negative as wel...
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Euclid's Elements, Book I, Def...

Obtuse (Geometry) 
Java Applet 
Tool 

[1]

Gives Euclid's original definitions of obtuse and acute angles and then examines the definitions' 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, Def...

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

Gives Euclid's original definitions of an equilateral, isosceles, scalene, rightangled, obtuseangled, and acuteangled triangle and then examines the definitions' validity and durability. To reset t...
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Euclid's Elements, Book II, Pr...

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states properties about the sides and angles of obtuse triangles. The guide then examines the structure of the proposition. To reset the applet, press "r" while your cursor is ov...
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GeomeTree

Obtuse (Geometry) 
iPad 
Tool 
$ 
[0]

GeomeTree enables the manipulation of geometric trees with 2 to 7 branches via multitouch gestures. Change angle between branches and change common ratio. Selectable themes draw trees with un...
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Triangle Classification

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

An interactive Java Illustration for classification of triangles. The types displayed are scalene, acute, obtuse, right, isosceles, and equilateral.
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Triangle Classification Game

Obtuse (Geometry) 
Java Applet 
Tool 

[1]

In this activity the interactivity attempts to train the user in the classification of triangles with respect to sides and internal angles. The user should move the vertices of a triangle on a square ...
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Triangles

Obtuse (Geometry) 
JavaScript 
Tool 

[0]

The user reviews different classifications of triangles by their sides and angles. After viewing examples, users can interactively practice matching different triangles with their correct classificat...
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Types of Triangles (Acute, Obt...

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right.
The applet shows a triangle that is initially acute (all angles less t...
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XP Math: Flip Card  Angle Typ...

Obtuse (Geometry) 
Flash 
Tool 

[0]

In this memory/matching game, students flip cards over in pairs, trying to match the description of an angle with a graphic representation of that angle.
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Right Triangle Geometry

Of Acute Angles (Trigonometry) 
Java Applet 
Activity 

[2]

This eModule presents realworld problems that motivate students to work with right triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles...
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The Art Gallery Problem

Of Acute Angles (Trigonometry) 
TINspire 
Activity 

[0]

The question of where patrons should stand to enjoy the best view of a painting is one that art gallery curators must consider on a regular basis. For this activity, we will consider a painting that i...
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Right Triangle Geometry

Of Acute Angles (Trigonometry) 
Java Applet 
Lesson Plan 

[0]

This eModule presents realworld problems that motivate students to work with right triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles...
More: lessons, discussions, ratings, reviews,...

Triangle Geometry

Of Acute Angles (Trigonometry) 
Java Applet 
Lesson Plan 

[1]

This eModule presents realworld problems that motivate students to work with triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles and s...
More: lessons, discussions, ratings, reviews,...

Cosecant Function in a Right T...

Of Acute Angles (Trigonometry) 
Flash 
Tool 

[0]

Flashbased demonstration of the procedure for finding the cosecant of an acute angle of a right triangle, given the lengths of the opposite side and hypotenuse. College Cram charges access fees ...
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Cosine and ArcCosine in a Righ...

Of Acute Angles (Trigonometry) 
Flash 
Tool 

[0]

Flashbased introduction to finding the third value when two values, of adjacent side, hypotenuse, and angle, are given. College Cram charges access fees by the month or by the semester for most r...
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