Browsing: All Content in Geometry for Triangles  Browse discussions |
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Resource Name |
Topic (Course) |
Technology |
Type |
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Rating |
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Geometry Activities for Middle...
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Triangles (Geometry) |
Sketchpad |
Activity |
$ |
 [0]
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These activities provide students with the opportunity to explore geometric concepts such as symmetry, transformations, and even fractal geometry in a way no other teaching tool can. The dynamic ca...
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Geometry Quickies #1
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Triangles (Geometry)+ |
Sketchpad |
Activity |
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[0]
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The activity based around medians in this series may generate some questions. Here is a further exploration of the topics it raised, again with reference to Geometer's Sketchpad.
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Inscribed Triangles
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Triangles (Geometry) |
Sketchpad |
Activity |
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[0]
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A guided exploration, using Geometer's Sketchpad, of a property of triangles inscribed in a circle.
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Medians in a Triangle
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Centers of triangles (Geometry) |
Sketchpad |
Activity |
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[0]
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Students discover various properties of the three medians of a triangle. The link to the activity itself is to a zip file that contains a pdf file of the activity.
This is a free sample a...
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Medians in a Triangle
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Triangles (Geometry)+ |
Sketchpad |
Activity |
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[0]
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A guided exploration of medians in a triangle using Geometer's Sketchpad.
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Proof as Explanation: Distance...
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Equilateral (Geometry) |
Sketchpad |
Activity |
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[0]
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Students explore the sum of certain distances in an equilateral triangle, and develop a proof to explain their observations. The link to the activity itself is to a zip file that contains both the...
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Proof as Systematization: Tria...
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Triangles (Geometry) |
Sketchpad |
Activity |
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 [1]
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Students use Sketchpad to develop a proof for a result that was discovered and used (without proof) in an earlier activity. The link to the activity itself is to a zip file that contains both the a...
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Shape Makers: Developing Geome...
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Triangles (Geometry) |
Sketchpad |
Activity |
$ |
[0]
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Author Michael Battista has built what he calls the Shape Makers computer microworld, a series of explorations in which students develop dynamic mental models for thinking about geometric shapes an...
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Simple Properties of Angle Bis...
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Triangles (Geometry) |
Sketchpad |
Activity |
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[0]
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A guided exploration using Geometer's Sketchpad of some properties of angle bisectors in a triangle.
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The Centroid of a Triangle
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Triangles (Geometry)+ |
Sketchpad |
Activity |
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[0]
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An exploration using Geometer's Sketchpad of the centroid of a triangle, and the way it divides the larger triangle.
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Three Tangents to a Circle
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Triangles (Geometry) |
Sketchpad |
Activity |
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[0]
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A guided exploration of a triangle formed by three tangents to a circle, and interrelations between its perimeter and the location of the tangents, using Geometer's Sketchpad.
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Two Minimum Length Problems an...
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Centers of triangles (Geometry) |
Sketchpad |
Activity |
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[0]
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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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The Pythagorean Theorem--and M...
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Triangles (Geometry) |
TI-Nspire |
Activity |
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[0]
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In this activity, students construct a triangle and find all angle and side measures. They practice dragging the vertices to form certain types of triangles, and then they confirm the Pyth...
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Fixed Area of a Triangle
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Triangles (Geometry) |
Computer |
Lesson Plan |
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[0]
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This lesson gives directions for teaching the fixed area of a triangle given a fixed base and height using Geometer's Sketchpad.
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The Centroid of a Triangle
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Centers of triangles (Geometry) |
Computer |
Lesson Plan |
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[0]
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This lesson provides directions for teaching about the centroid of a triangle using Geometer's Sketchpad.
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The Triangle Inequality
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Triangles (Geometry) |
Computer |
Lesson Plan |
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[0]
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This lesson provides directions for teaching about triangle inequality using Geometer's Sketchpad.
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Triangle Inequality in Animati...
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Triangles (Geometry) |
Computer |
Lesson Plan |
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[0]
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This lesson shows you how to create an animation of the triangle inequality using Geometer's Sketchpad.
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Right Triangle Geometry
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Right (Geometry) |
Java Applet |
Lesson Plan |
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[0]
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This eModule presents real-world 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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Triangle Geometry
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Obtuse (Geometry)+ |
Java Applet |
Lesson Plan |
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 [1]
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This eModule presents real-world 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...
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Geometry, Section 1
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Triangles (Geometry) |
Computer |
Support Material |
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[0]
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A collection of illustrated concepts, including problems for students to work out, and standalone word problems. Includes automated feedback. Pre- and post-tests, answer sheets, additional help, tools...
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Geometry, Section 2
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Triangles (Geometry) |
Computer |
Support Material |
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[0]
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A collection of illustrated concepts including problems for students to work out, and standalone word problems. Includes automated feedback. Pre- and post-tests, answer sheets, additional help, tools,...
More: lessons, discussions, ratings, reviews,...
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Medians of a Triangle
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Centers of triangles (Geometry) |
Computer |
Support Material |
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[0]
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The definition and an illustration of the medians of a triangle. From Illuminations' IGD: Interactive Geometry Dictionary.
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Area of a Triangle (Geometry)
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Triangles (Geometry) |
Flash |
Support Material |
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[0]
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This mini- lesson explains the formula used to calculate the area of a triangle.
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Congurent and Similar Triangle...
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Triangles (Geometry) |
Flash |
Support Material |
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[0]
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This mini-lesson explains congruence and similarity in triangles, using these concepts to prove triangles congruent, or to determine missing measurements.
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Medians and Midsegment (Geomet...
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Triangles (Geometry) |
Flash |
Support Material |
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[0]
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This mini-lesson explains theorems related to medians and midsegments.
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