Browsing: All Content in Geometry for Triangles Browse discussions 
Login to Subscribe / Save Results

Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Touch Pythagoras

Triangles (Geometry)+ 
Android 
Tool 

[0]

With this app the Pythagorean Theorem is interactive. You can change the lengths of the legs (dragging), the length of the hypotenuse with two fingers and zoom (pinch zoom) and rotate the figure (dra...
More: lessons, discussions, ratings, reviews,...

Angles of a Triangle

Triangles (Geometry) 
Cabri Jr. 
Activity 

[0]

Students measure the interior and exterior angles of a triangle and find their relationships.
More: lessons, discussions, ratings, reviews,...

Interior Angle Theorem

Triangles (Geometry) 
Cabri Jr. 
Activity 

[0]

This activity is designed to help students discover the Interior Angle Theorem: The sum of the measures of the interior angles of a triangle is 180°.
More: lessons, discussions, ratings, reviews,...

Euler line  Math Open Referen...

Centers of triangles (Geometry) 
Computer 
Tool 

[0]

An interactive applet and associated web page that describe the Euler line. It shows a triangle whose vertices can be dragged.
As you drag them, the centroid, circumcenter and orthocenter mov...
More: lessons, discussions, ratings, reviews,...

Fixed Area of a Triangle

Triangles (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson gives directions for teaching the fixed area of a triangle given a fixed base and height using Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

Geometria

Triangles (Geometry)+ 
Computer 
Tool 

[0]

Geometria is free (GPL) crossplatform software based on a tworole (teacher, student) model. The teacher creates a problem, provides it with an answer and saves the problem in a file. The student ope...
More: lessons, discussions, ratings, reviews,...

Geometry, Section 1

Triangles (Geometry) 
Computer 
Support Material 

[0]

A collection of illustrated concepts, including problems for students to work out, and standalone word problems. Includes automated feedback. Pre and posttests, answer sheets, additional help, tools...
More: lessons, discussions, ratings, reviews,...

Geometry, Section 2

Triangles (Geometry) 
Computer 
Support Material 

[0]

A collection of illustrated concepts including problems for students to work out, and standalone word problems. Includes automated feedback. Pre and posttests, answer sheets, additional help, tools,...
More: lessons, discussions, ratings, reviews,...

Impossible Triangles

Triangles (Geometry) 
Computer 
Activity 

[1]

Figure out what makes each of the given triangles impossible. Which triangle property is violated?
More: lessons, discussions, ratings, reviews,...

Isosceles Triangle Puzzler

Isosceles (Geometry) 
Computer 
Activity 

[1]

Test your knowledge on isosceles triangles by answering these questions. Then submit your answers and see what you know.
More: lessons, discussions, ratings, reviews,...

Medians of a Triangle

Centers of triangles (Geometry) 
Computer 
Support Material 

[0]

The definition and an illustration of the medians of a triangle. From Illuminations' IGD: Interactive Geometry Dictionary.
More: lessons, discussions, ratings, reviews,...

The Centroid of a Triangle

Centers of triangles (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson provides directions for teaching about the centroid of a triangle using Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

The Triangle Inequality

Triangles (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson provides directions for teaching about triangle inequality using Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

Triangle Inequality in Animati...

Triangles (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson shows you how to create an animation of the triangle inequality using Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

Random Triangles for Discoveri...

Triangles (Geometry) 
Fathom 
Tool 

[0]

Paul Myers created this demonstration as he was designing a Fathom project for Discovering Geometry. It shows when a triangle can be formed from the pieces after two random cuts are made in a 2...
More: lessons, discussions, ratings, reviews,...

Area and Perimeter  PDA versi...

Triangles (Geometry) 
Flash 
Tool 

[0]

This activity is designed to support the understanding of perimeter and area, and to run on PDAs.
More: lessons, discussions, ratings, reviews,...

Area and perimeter of a triang...

Triangles (Geometry) 
Flash 
Tool 

[0]

An interactive applet and associated web page that show the relationship between the perimeter and area of a triangle.
It shows that a triangle with a constant perimeter does NOT have a constant...
More: lessons, discussions, ratings, reviews,...

Area of a Triangle

Triangles (Geometry) 
Flash 
Tool 

[1]

Flashbased introduction to finding the area of a triangle, given the base and height. College Cram charges access fees by the month or by the semester for most resources. To get a preview of thei...
More: lessons, discussions, ratings, reviews,...

Area of a Triangle (Geometry)

Triangles (Geometry) 
Flash 
Support Material 

[0]

This mini lesson explains the formula used to calculate the area of a triangle.
More: lessons, discussions, ratings, reviews,...

Congurent and Similar Triangle...

Triangles (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains congruence and similarity in triangles, using these concepts to prove triangles congruent, or to determine missing measurements.
More: lessons, discussions, ratings, reviews,...

Law of Cosines  Math Open Ref...

Law of cosines (Geometry) 
Flash 
Tool 

[0]

A web page and interactive applet demonstrating the Law of Cosines.
The applet shows a triangle with draggable vertices.
As you drag them, the Law of Cosines formula is continually r...
More: lessons, discussions, ratings, reviews,...

Law of Sines  Math Open Refer...

Law of sines (Geometry) 
Flash 
Tool 

[0]

A web page and interactive applet demonstrating the Law of Sines.
The applet shows a triangle with draggable vertices.
As you drag them, the "Law of Sines" ratio is continually recal...
More: lessons, discussions, ratings, reviews,...

Medians and Midsegment (Geomet...

Triangles (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains theorems related to medians and midsegments.
More: lessons, discussions, ratings, reviews,...

Traingle area, box method (Coo...

Triangles (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...
More: lessons, discussions, ratings, reviews,...

Triangle AngleSum Theorem (Ge...

Triangles (Geometry) 
Flash 
Support Material 

[0]

This lesson explains the triangle anglesum theorem and how to use it in proofs.
More: lessons, discussions, ratings, reviews,...

Page 1
2
3
4
5
6
7
8
next »
