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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Two Minimum Length Problems an...

Centers of triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

A guided exploration of minimum distances from vertices of a triangle or quadrilateral to a point within the figure, using Geometer's Sketchpad.
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Two Regular Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[1]

This applet corresponds to a problem dealing with triangle congruence within 2 overlapping regular triangles.
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Two Runners

Rates (Math 4)+ 
Java Applet 
Lesson Plan 

[2]

While moving runners along a line, and changing their step size and starting position, the students will identify and describe situations with constant rates of change and compare them.
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Two Squares

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Find out what quadrilateral is formed at the midpoints of the segments connecting these two squares.
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Two Squares  Finding Angles a...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

This threepart problem deals with angles, triangles, and congruence within areas created by overlapping squares. It has a corresponding applet that helps you to visualize the solutions.
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Two Squares  Maximum Area

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet has a corresponding problem that deals with maximizing the area of two overlapping squares.
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Two Tapes

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Figure out what quadrilateral is created by these two pieces of overlapping tape using the provided applet.
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Two Variable Function Pump

Properties of Rational Functions (PreCalculus) 
Java Applet 
Tool 

[0]

This activity allows the user to step through plotting a twovariable function, and to judge whether a given starting point is a prisoner or an escapee, in order to understand complex numbers and Juli...
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Two Variable Functions Dialogu...

Functions / Relations (Algebra II) 
Calculator 
Support Material 

[2]

Introduces 2 variable functions as ordered pairs and how to operate perform operations on ordered pairs.
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TwoDigit Numbers

Writing numbers (Kindergarten)+ 
JavaScript 
Tool 

[1]

Drag and drop the names of the two digit numbers on to the picture. The name box will turn green if correctly placed.
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TwoStep Equations and Inequal...

One Variable Equations (Algebra)+ 
JavaScript 
Tool 

[0]

The user reviews how to solve equations and inequalities that require at least two steps. After viewing some examples, users can interactively practice solving equations and inequalities for the varia...
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Type 1 and Type 2 Errors

Inference (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

This explanation of Type 1 and Type 2 errors in hypothesis testing uses a criminal justice context; a builtin applet illustrates the relationship among significance level, power of the test, and prob...
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Type 1 and Type 2 Errors

Tests of Significance (Probability & Statistics)+ 
Java Applet 
Tool 

[1]

This applet demonstrates Type I and Type II errors, as well as the power of the test, in onesided hypothesis testing.
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Types of Angle  Math Open Ref...

Angles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate various classes of angle: acute, right, obtuse, straight, reflex and full.
The applet presents an angle (initially acut...
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Types of Angles

Angles (Geometry) 
Java Applet 
Tool 

[1]

Gives definitions of acute, obtuse, and right angles along with an applet that demonstrates the different types of angles. In addition there is an applet that tests understanding of acute vs. obtuse ...
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Types of Functions (Algebra I)

Functions / Relations (Algebra) 
Flash 
Support Material 

[0]

This minilesson covers onetoone matching of functions, showing graphical and tabular representation of one to one mapping and many to one mapping.
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Types of Triangles

Classify geometric objects (Math 3)+ 
Java Applet 
Activity 

[2]

This activity is available in Word, PDF, or HTML format and at two different levels (an introduction to types of triangles, and a more advanced version). Students use a GSP sketch or interactive web ...
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Types of Triangles

Classify geometric objects (Math 3)+ 
Java Applet 
Tool 

[4]

This JavaSketchpad applet accompanies the tPoW, Types of Triangles. Students are able to drag and manipulate four triangles and by noticing what happens they classify the triangles as either scalene, ...
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Types of Triangles

Classify geometric objects (Math 3)+ 
Sketchpad 
Tool 

[0]

This Sketchpad sketch accompanies the tPoW, Types of Triangles. Students are able to drag and manipulate four triangles and by noticing what happens they classify the triangles as either scalene, isos...
More: lessons, discussions, ratings, reviews,...

Types of Triangles

Classify geometric objects (Math 3)+ 
Sketchpad 
Technology PoW 

[3]

Students use a GSP sketch or an interactive web page to drag and manipulate four triangles. They identify one of each type: scalene, isosceles, equilateral, and right.
NOTE: A free...
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Types of Triangles (Acute, Obt...

Triangles (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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Uncovering Math with Manipulat...

General (Kindergarten)+ 
TI10 
Activity 

[0]

The activities for the TI10, designed for primary grades, build connections between physical representations and the mathematical symbolism of the calculator. Each activity consists of Teacher Pag...
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Uncovering Math with Manipulat...

General (Kindergarten)+ 
TI10 
Activity 

[1]

Designed for intermediate grades, the activities for the TI10 and the TI15 Explorer use the calculator as a datagenerating device to support exploration of mathematical ideas. Each activity cons...
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Uncovering Math with Manipulat...

General (Math 1)+ 
TI15 
Activity 

[1]

Designed for intermediate grades, the activities for the TI10 and the TI15 Explorer use the calculator as a datagenerating device to support exploration of mathematical ideas. Each activity cons...
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Undecagon  Math Open Referenc...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

The applet shows an undecagon where the user can drag any vertex to reshape it.
User can see that the interior and exterior angles are constant in a regular undecagon, but vary in an irregular ver...
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