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Resource Name	Topic (Course)	Technology	Type	Rating
Browsing: All Content in Geometry for Circles Browse discussions			Login to Subscribe / Save Results
Circles in the Plane	Circles (Geometry)	Cabri Jr.	Activity	[0]
Students investigate the relationships between the equation of a circle, the length of its radius, and the coordinates of its center. More: lessons, discussions, ratings, reviews,...
Get in Line	Circles (Geometry)	Calculator	Activity	[1]
A calculator activity involving perimeter and circumference. More: lessons, discussions, ratings, reviews,...
A Continuation of Minimum Peri...	Circles (Geometry)	Sketchpad	Activity	[0]
A further guided exploration of triangles inscribed within triangles, using Geometer's Sketchpad. More: lessons, discussions, ratings, reviews,...
A Japanese Temple Problem	Circles (Geometry)+	Sketchpad	Activity	[0]
In this guided Geometer's Sketchpad exploration, students use their knowledge of tangent circles to discover a relationship between the radii of three circles which are mutually tangent to each other ... More: lessons, discussions, ratings, reviews,...
Areas of Regular Polygons and ...	Pi (Geometry)	Sketchpad	Activity	[0]
Students manipulate the number of sides in a regular polygon, develop a formula relating the area and perimeter of the polygon, and use their result to develop a formula relating the circumference ... More: lessons, discussions, ratings, reviews,...
Chords in a Circle	Chords (Geometry)	Sketchpad	Activity	[0]
Students construct chords in a circle and manipulate them to discover various properties. The link to the activity itself is to a zip file that contains a pdf file of the activity. This i... More: lessons, discussions, ratings, reviews,...
Circumscribed Triangles	Circles (Geometry)	Sketchpad	Activity	[0]
A guided exploration of the relationship between the midpoints of a triangle inscribed in a circle, and the center of the circle, using Geometer's Sketchpad. More: lessons, discussions, ratings, reviews,...
Determining the Uniqueness of ...	Circles (Geometry)	Sketchpad	Activity	[0]
Are there a certain number of arbitrary points such that there exists a unique circle through them? To explore and conjecture an answer to this question, students will construct circles passing throug... More: lessons, discussions, ratings, reviews,...
Inscribed Triangles	Circles (Geometry)	Sketchpad	Activity	[0]
A guided exploration, using Geometer's Sketchpad, of a property of triangles inscribed in a circle. More: lessons, discussions, ratings, reviews,...
Kissing Circles	Circles (Geometry)+	Sketchpad	Activity	[0]
This guided exploration, using Geometer's Sketchpad, examines the properties of tangent circles ("osculating" or kissing circles). More: lessons, discussions, ratings, reviews,...
Three Tangents to a Circle	Tangents (Geometry)	Sketchpad	Activity	[0]
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. More: lessons, discussions, ratings, reviews,...
Archeology Problem	Chords (Geometry)	Computer	Lesson Plan	[0]
This lesson/problem requires that students be able to construct chords to a circle and perpendicular lines in Geometer's Sketchpad. More: lessons, discussions, ratings, reviews,...
Spirograph Machine, or Tea cup...	Circles (Geometry)	Computer	Lesson Plan	[0]
This lab studies the effects (both mathematical and artistic) of circular motion as points rotate around circles. Interesting things occur when a point moves around a circle as the circle rotates arou... More: lessons, discussions, ratings, reviews,...
The Geometer's Sketchpad Equat...	Circles (Geometry)	Computer	Lesson Plan	[0]
This activity guides students to discovering the equation of a circle. More: lessons, discussions, ratings, reviews,...
Paper Cup Mathematics	Circles (Geometry)	Sketchpad	Lesson Plan	[0]
Imagine a discarded paper cup rolling on its side of a flat surface. What geometric shape does the path of the cup form? Students investigate this question and begin the activity by experimenting wit... More: lessons, discussions, ratings, reviews,...
Euclid's Elements, Book I, Def...	Circles (Geometry)	Computer	Support Material	[0]
Gives Euclid's original definitions of boundaries and figures and then examines the definitions' validity and durability. More: lessons, discussions, ratings, reviews,...
Geometry, Section 2	Circles (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 post-tests, answer sheets, additional help, tools,... More: lessons, discussions, ratings, reviews,...
The Circle	Circles (Geometry)	Computer	Support Material	[0]
Provides you with the definitions of circle, radius, diameter, and circumference. More: lessons, discussions, ratings, reviews,...
The Radian	Circumference (Geometry)	Computer	Support Material	[0]
Provides an illustration and description of radians and how they relate to a circle. More: lessons, discussions, ratings, reviews,...
Area of a Circle (Geometry)	Circles (Geometry)	Flash	Support Material	[0]
This mini- lesson explains the formula used to calculate the area of a circle. More: lessons, discussions, ratings, reviews,...
Circle: Arcs, Chords, Tangents...	Circles (Geometry)	Flash	Support Material	[0]
This mini-lesson explains some parts of circles that lie on or inside the circle but with special names, including major and minor arcs, chords, tangents, sectors, segments, and secants. More: lessons, discussions, ratings, reviews,...
Circles (Getting Started: Geom...	Circles (Geometry)	Flash	Support Material	[0]
This mini-lesson explains the geometry of circles and the relationship between different parts of the circle. More: lessons, discussions, ratings, reviews,...
Circumference of a Circle (Geo...	Circumference (Geometry)	Flash	Support Material	[0]
This mini-lesson defines and explains the basics of a circle: radius, diameter, circumference and their relationship. It will also guide you through determining the circumference of a circle given a r... More: lessons, discussions, ratings, reviews,...
Equation of a Circle in Standa...	Circles (Geometry)	Flash	Support Material	[0]
This mini-lesson explains how to obtain and use the standard form of the equation of a circle, as well as how to convert between the standard and general form. More: lessons, discussions, ratings, reviews,...
Inscribed and Circumscribed Po...	Circles (Geometry)	Flash	Support Material	[0]
This mini-lesson explains concepts of and relationships between inscribed and circumscribed polygons. More: lessons, discussions, ratings, reviews,...
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