CK-12 Foundation
Ck 12: Elem Math: Identifying Ellipses and Polygons
[Free Registration/Login may be required to access all resource tools.] Students watch a video and then attempt practice problems on identifying ellipses and polygons.
Discovery Education
Discovery Education: Web Math: Graphing Ellipses
WebMath offers a java applet that allows you to input information about an ellipse, in one of four forms, and gives you the graph of the ellipse.
Other
Xah Lee's Home Page: Ellipse
Good site with history, descriptions, properties, etc. of the Ellipse. This site gives the parmetric equation of an elipse and many interesting ways to find an ellipse in objects.
Other
Ellipse
This site provides wonderful information on the ellipse. The information is a little in-depth, links are provided for additional information. Includes pictures, charts, descriptions and properties.
Math Is Fun
Math Is Fun: Ellipse
Students learn about the ellipse. The tutorial consists of notes, examples, and practice problems to check for comprehension.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Graphing an Ellipse
Dr. Math, in a reply to a student question, mentions a couple of different methods to use to obtain the graph of an ellipse, the doctor details one way by using the known coordinates of a circle.
Physics Classroom
The Physics Classroom: Circular Motion Principles for Satellites
From The Physics Classroom. Uses easy- to-understand language to discuss how circular motion principles apply to the motion of satellites. Describes the tangential velocity and centripetal acceleration of a satellite. Includes many...
Physics Classroom
The Physics Classroom: Mathematics of Satellite Motion
The mathematics associated with the motion of satellites is described. Equations (for period, velocity, acceleration and force) are stated, symbols described, and sample problems solved. Includes five practice problems with solutions and...
Physics Classroom
The Physics Classroom: Energy Relationships for Satellites
The orbits of satellites are described and an energy analysis is performed. Kinetic, potential and total mechanical energy are explained and applied to the motion of satellites.
Physics Classroom
The Physics Classroom: Kepler's Three Laws
The three laws of planetary motion as described by Kepler are stated and elaborated upon. Useful graphics and an easy-to-understand language are used to explain the nature of planetary motion. Both conceptual and mathematical. Includes a...
Physics Classroom
The Physics Classroom: Satellite Motion
An animation depicting the path of projectiles launched at various launch speeds from the fictional Newton's Mountain. Accompanying text discusses satellite motion and the requirements of orbital motion. Links to further information is...
Khan Academy
Khan Academy: Graph and Features of Ellipses
Find the center and radii of an ellipse from its graph, and vice versa. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Ellipse Standard Equation and Graph
Given the graph of an ellipse, find its equation, and vice versa. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Analyze Math
Analyze Math: Equation of Ellipse
Learners investigate the ellipse equation. The tutorial examines intercepts, foci, sketching ellipses, major axes,and minor axes. Examples with detailed solutions are included.
Purple Math
Purplemath: Conics: Ellipses: Introduction
Introduces the basic terms, variables, and equations for ellipses, and discusses their physical properties.
Purple Math
Purplemath: Conics: An Overview
Introduces the basics of conics in algebra, including a flow-chart for determining which sort of conic is represented by a given equation.
University of St. Andrews (UK)
University of St. Andrews: Contributions of Apollonius
This site, provided by the University of St. Andrews in Scotland, describes the contributions of Apollonius of Perga.
University of St. Andrews (UK)
University of St. Andrews: Ellipse
The University of St. Andrews offers a comprehensive and detailed site explaining the ellipse.
Khan Academy
Khan Academy: Equation of an Ellipse From Features
Given the foci of an ellipse (and some other feature), find its equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Foci of an Ellipse From Equation
Given the equation of an ellipse, find its foci. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Foci of an Ellipse From Radii
Given the major and minor radii of an ellipse, find its foci. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Center and Radii of Ellipses From Equation
Find the center and major and minor radius of an ellipse given its equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Analysis: Focal Property of Ellipses
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn the focal property and the standard form for ellipses not centered at the origin. Students examine guided notes, review guided...
CK-12 Foundation
Ck 12: Analysis: General Forms of Conic Sections
[Free Registration/Login may be required to access all resource tools.] In this lesson students review the general forms of conic section equations, identifying conic sections from their equations. Students examine guided notes, review...