Other
Gobierno De Navarra: Estudio De Las Conicas
Learn about conics sections with these interactive activities.
Alabama Learning Exchange
Alex: Conic Sections: Playing With Hyperbolas
Through a mixture of online exploration, and teacher instruction, students will discover how Hyberbolas are formed and will be able to use the key components (center, vertices and the asymptotes) to generate the equation of a graph.
Shodor Education Foundation
Shodor Interactivate: Conic Flyer Equations
Introduces students to a geometric derivation of the conic sections.
Khan Academy
Khan Academy: Center & Radii of Ellipses From Equation
In this four-question quiz, find the center and major and minor radius of an ellipse given its equation.
National Council of Teachers of Mathematics
The Math Forum: Analytic Geometry Formulas, Hyperbolas
At this site from the Math Forum, a brief overview on calculating various measures of segments, like the transverse and conjugate axes and the distance between foci, is given. Additionally, equations of hyperbolas in general, standard,...
National Council of Teachers of Mathematics
The Math Forum: Analytic Geometry Formulas, Ellipses
A brief overview from the Math Forum on calculating various measures of segments, like major and minor axes and distance from focus to center, is given. Additionally, equations of ellipse in general and standard forms are listed.
Wolfram Research
Wolfram Math World: Eccentricity
This site explains eccentricity, the quantity defined by a conic section to determine its type of conic section. Has links to related topics.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Deriving the Hyperbola Formula
Dr. Math tackles a question about deriving the formula for a hyperbola posed by a student.
National Council of Teachers of Mathematics
The Math Forum: Everyday Appearances of Conics
Just getting started with conics and you need some examples of where they occur? Check out Dr. Math's reply to such a question.
Math Words
Math words.com: Foci of an Ellipse
The definition for foci for an ellipse is given and the definition for ellipse is given. Also gives a diagram and the equation for an ellipse in standard form.
Math Words
Math words.com: Ellipse
Brief definition for ellipse. The standard form for the equation of an ellipse is given also.
Math Words
Math words.com: Conic Sections
Examples of conic sections are given and the equation for their standard form is also given.
Math Words
Math words.com: Foci, Hyperbola
An explanation of what the foci is as it relates to hyperbolas. An accompanying illustration is also included.
Sophia Learning
Sophia: Finding the Equation for an Ellipse: Lesson 2
This lesson explains the steps for how to find the equation for an ellipse given its foci and vertices. It is 2 of 4 in the series titled "Finding The Equation For An Ellipse."
Sophia Learning
Sophia: Finding the Equation for an Ellipse: Lesson 1
This brief lesson shows how to find the equation for an ellipse given its foci and vertices and presents a problem to try. Includes a short quiz. It is 1 of 4 in the series titled "Finding The Equation For An Ellipse."
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Hyperbolas
Find a quick, concise explanation of hyperbolas. An example is given and clearly explained.
National Council of Teachers of Mathematics
The Math Forum: Foci of an Ellipse
The question, "If the major and minor axis of an ellipse are given, how do I find the focus points?" is answered at the Math Forum.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equations of Conics
Posed with a student question about equations of conics, Dr. Math provides some insight on the standard form of parabolas, ellipses, and hyperbolas. One example is shown.
Wolfram Research
Wolfram Alpha: Conic Sections
The resource consists of a geometry animation that shows conic sections.
University of St. Andrews (UK)
University of St. Andrews: Hyperbola
This University of St. Andrews site gives the parametric and cartesian equation for a hyperbola along with an example graph. The site offers links to related curves.
Other
Ma Ttours Definitions of Ellipse Terms Foci
Basic definitions are given for foci, focus, and other terms related to the focus (foci).