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Browsing: All Content in Geometry for Triangles Browse discussions			Login to Subscribe / Save Results
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,...
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,...
Right Triangle Geometry	Right (Geometry)	Java Applet	Activity		[2]
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... More: lessons, discussions, ratings, reviews,...
Triangle Geometry	Obtuse (Geometry)+	Java Applet	Activity		[0]
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... More: lessons, discussions, ratings, reviews,...
Types of Triangles	Isosceles (Geometry)+	Java Applet	Activity		[1]
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 ... More: lessons, discussions, ratings, reviews,...
Constellations	Triangles (Geometry)	Sketchpad	Activity		[0]
The task requires students to classify triangles according to angle and side properties. Students use Geometer's Sketchpad to manipulate triangles to see that constructed triangles have imposed... More: lessons, discussions, ratings, reviews,...
Constructions of Equilateral a...	Isosceles (Geometry)+	Sketchpad	Activity		[0]
Students will discuss the difference between drawing and constructing a triangle using The Geometer’s Sketchpad. They will further develop constructions for both isosceles and equilateral triangles. ... More: lessons, discussions, ratings, reviews,...
Exploring Centers of a Triangl...	Centers of triangles (Geometry)	Sketchpad	Activity		[0]
Using problem solving skills, formal geometry, and The Geometer's Sketchpad, students will model and solve two real-world problems by constructing the incenter and circumcenter of triangles. St... More: lessons, discussions, ratings, reviews,...
Exploring Centers of a Triangl...	Centers of triangles (Geometry)	Sketchpad	Activity		[0]
Using problem solving skills, formal geometry, and The Geometer's Sketchpad, students will model and solve a real-world problem by constructing the centroid of a triangle. Students will explore... More: lessons, discussions, ratings, reviews,...
Exploring Characteristics of T...	Triangles (Geometry)	Sketchpad	Activity		[0]
Students draw triangles and explore the classification of each using the measures of interior angles and lengths of sides. In the extension activities, the students further explore and generalize a fo... More: lessons, discussions, ratings, reviews,...
Exploring Types of Triangles	Triangles (Geometry)	Sketchpad	Activity		[0]
Students explore various triangle properties, such as scalene, isosceles, equilateral, acute, right, and obtuse. The link to the tool itself is to a zip file that contains both the activity in pdf ... More: lessons, discussions, ratings, reviews,...
Geometry Activities for Middle...	Triangles (Geometry)	Sketchpad	Activity	$	[0]
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... More: lessons, discussions, ratings, reviews,...
Medians in a Triangle	Centers of triangles (Geometry)	Sketchpad	Activity		[0]
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... More: lessons, discussions, ratings, reviews,...
Proof as Explanation: Distance...	Equilateral (Geometry)	Sketchpad	Activity		[0]
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... More: lessons, discussions, ratings, reviews,...
Proof as Systematization: Tria...	Triangles (Geometry)	Sketchpad	Activity		[1]
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... More: lessons, discussions, ratings, reviews,...
Shape Makers: Developing Geome...	Triangles (Geometry)	Sketchpad	Activity	$	[0]
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... More: lessons, discussions, ratings, reviews,...
The Pythagorean Theorem--and M...	Triangles (Geometry)	TI-Nspire	Activity		[0]
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... 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,...
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,...
Right Triangle Geometry	Right (Geometry)	Java Applet	Lesson Plan		[0]
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... More: lessons, discussions, ratings, reviews,...
Triangle Geometry	Obtuse (Geometry)+	Java Applet	Lesson Plan		[1]
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... More: lessons, discussions, ratings, reviews,...
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