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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
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,...
Adjacent Arcs - Math Open Refe...	Arcs (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the concept of adjacent arcs. The user can 3 drag points around a circle that define the endpoints of two adjacent arcs. Web page ha... More: lessons, discussions, ratings, reviews,...
Annulus, definition and proper...	Circles (Geometry)	Java Applet	Tool	[0]
A web page and interactive applet show that an annulus is a flat (planar) ring, and can be thought of as a disk with a hole punched out of it. Applet can be enlarged to full screen size f... More: lessons, discussions, ratings, reviews,...
Arc - Math Open Reference	Arcs (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the concept of an arc. The applet shows a circle with part of it highlighted to identify the arc. Each endpoint of the arc can be d... More: lessons, discussions, ratings, reviews,...
Arc Central Angle - Math Open ...	Arcs (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the the concept of the central angle subtended by an arc. The applet shows an arc and the corresponding central angle. As the arc en... More: lessons, discussions, ratings, reviews,...
Arc Length - Math Open Referen...	Arcs (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the concept of arc length. The applet shows a circle with part of it's circumference highlighted and the central angle shown. As... 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,...
Area of a Circle	Circles (Geometry)	Sketchpad	Tool	[1]
This is a downloadable Geometer's Sketchpad file that illustrates the source of the area formula for a circle. More: lessons, discussions, ratings, reviews,...
Area of a Circle - Math Open R...	Circles (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the area of a circle. A circle is shown with a point on the circumference that can be dragged to resize the circle. As the circle i... More: lessons, discussions, ratings, reviews,...
Area of a Segment of a Circle ...	Circles (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the area of a segment of a circle - a part of a circle cut off by a chord. The applet shows a circle and a segment of that circle, ... More: lessons, discussions, ratings, reviews,...
Area of an Annulus - Math Open...	Circles (Geometry)	Java Applet	Tool	[0]
A web page and interactive applet show how to compute the area of an annulus. Text on the page explains that the area is the overall area minus the area of the circular 'hole' in the center. For t... 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,...
Areas of Regular Polygons and ...	Circles (Geometry)+	Sketchpad	Tool	[1]
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,...
Center-Radius Form	Circles (Geometry)	Sketchpad	Tool	[0]
This is a downloadable Geometer's Sketchpad file that illustrates the source of the center-radius area of a circle formula. Scroll halfway down this page in order to find the link to download this fil... More: lessons, discussions, ratings, reviews,...
Central Angle Theorem - Math O...	Arcs (Geometry)+	Java Applet	Tool	[1]
A web page and interactive applet illustrate the Central Angle Theorem (an arc subtends twice the angle at the center as at the circumference). By dragging the key points with the mouse, students ... More: lessons, discussions, ratings, reviews,...
Central Angle of a Circle - Ma...	Arcs (Geometry)+	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate the central angle of a circle--the angle subtended at the center by two points on the circle. The applet presents a circ... More: lessons, discussions, ratings, reviews,...
Chord (of a circle) - Math Ope...	Chords (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that demonstrate a chord of a circle. The applet shows a circle and two draggable points on its periphery, with the chord drawn between them. A c... 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,...
Circle Solver	Diameter (Geometry)+	JavaScript	Tool	[0]
The user can enter the circle's area, diameter, or circumference and this tool will solve for the other two pieces of data. More: lessons, discussions, ratings, reviews,...
Circle definition - Math Open ...	Circles (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page defining a circle. The applet shows a circle where the user can drag the center and a point on the circle. The radius line supports the definition ... More: lessons, discussions, ratings, reviews,...
Circles	Circles (Geometry)	JavaScript	Tool	[0]
The user reviews circles and the important terms and properties related to circles. After viewing examples, users can interactively practice matching the term with the correct part of the circle. More: lessons, discussions, ratings, reviews,...
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,...
Circles: Definitions and Formu...	Circles (Geometry)	JavaScript	Support Material	[0]
The user reviews circles, terms related to circles, and formulas and equations associated with circles. More: lessons, discussions, ratings, reviews,...
Circumcircle of a Polygon - Ma...	Circles (Geometry)	Java Applet	Tool	[0]
An interactive applet and associated web page that show the properties of a circumcircle of a polygon. The applet shows a regular polygon where the user can drag the vertices to reshape i... More: lessons, discussions, ratings, reviews,...
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