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.
Science Struck
Science Struck: Guide on Interpolation vs. Extrapolation
Explains what interpolation and extrapolation are and methods used for them in statistics. Gives real-world examples of their applications in telecommunications, engineering, thermodynamics etc.
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: Mathematics Archive: John Wallis
This page provides an excellent biography of John Wallis, an English clergyman, mathematician, and philosopher. Discusses his childhood, education, travel, studies, and his contributions to the fields of philosophy, language, and...
CK-12 Foundation
Ck 12: Precalculus Concepts 2.0
A complete high school Precalculus Concepts course. Includes 'Related Modalities' for each lesson that teach the same concept in different ways. The text materials follows Algebra II and comes before Calculus or Statistics. The content...
Math Open Reference
Math Open Reference: Ellipse
A complete reference guide to an ellipse. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
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.
Curated OER
Zona Land: Conic Sections the Ellipse
View a simple graph of an ellipse and a photo showing how the ellipse intersects a cone.
Curated OER
Zona Land: Conic Sections the Ellipse
View a simple graph of an ellipse and a photo showing how the ellipse intersects a cone.
University of St. Andrews (UK)
University of St. Andrews: Quotation by Apollonius
This site, which is provided for by the University of St. Andrews, contains a quote of Apollonius from the Preface to Book 1 of "Conics."
Math2
Math2
This is a site for students and teachers of all grade levels. If you are looking for math tables, general information about math topics, or you would like to ask a question, this is the site to visit.
University of Georgia
University of Georgia: Investigating Tangents: Rotation of Axes
An explanation of the rotation of axes and the equations involved in the process. Includes diagrams, explanations and formulas.
Texas Instruments
Texas Instruments: Equations for Curves Passing Through a Given Set of Points
In this Derive activity, students explore equations of curves which pass through a set of given points. They use this method to determine the location of a distribution center which is equidistant from the outlets of a large department...
Johan Claeys
Math Abundance: The Parabola
Defines parabolas, their properties, gives parametric equations, tangent line in a point D of a parabola, etc.
University of Cambridge
University of Cambridge: Maths and Sports: Angle of Shot
At what angle should you release the shot to break Olympic records? This activity gives students the opportunity to investigate projectile motion in a real-life context, and is aimed at A-level students (grades 10, 11, and 12).
CK-12 Foundation
Ck 12: Algebra: Completing the Square
[Free Registration/Login may be required to access all resource tools.] This lesson covers completing the square when the leading coefficient is not equal to one.
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.
Johan Claeys
Math Abundance: The Hyperbola
Great Site! Defines Hyperbola, gives the parametric equation, etc.
Purple Math
Purplemath: Graphing Quadratic Functions: Introduction
The most basic quadratic is y = x2. The general technique for graphing quadratics is the same as for graphing linear equations. The quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear...
CK-12 Foundation
Ck 12: Analysis: Hyperbolas and Asymptotes
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn about the asymptotes of hyperbolas. Students examine guided notes, review guided practice, watch instructional videos and attempt...
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: Geometry: Circles in the Coordinate Plane
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the standard equation of a circle. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Shodor Education Foundation
Shodor Interactivate: Cross Sections
This instructional activity utilizes the concepts of cross-sections of three-dimensional figures to demonstrate the derivation of two-dimensional shapes.
Khan Academy
Khan Academy: Write Standard Equation of a Circle
Given the graph of a circle or its features, practice finding its standard equation.
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