Purple Math
Purplemath: Conics: Parabolas: Introduction
This reference material introduces the terms and equations related to parabolas in the context of conics. Also, relates concepts to previously-learned material and shows how to 'read' from the 'conics' form of the parabola equation.
Other
Sierra College: Conics
Provides the locus of points, dominant axis and equation, discriminant, center, vertex, focus, directrix, and asymptotes for the parabola, the ellipse, and the hyperbola.
Texas Instruments
Texas Instruments: Conics in Standard and Parametric Form
This is a second learn check to use after completing the intro to changing from rectangular form to parametric form of the equations of conics.
Texas Instruments
Texas Instruments: Conics & Parametrics 1
This activity is a LearningCheck to quickly assess students' ability to identify conics from their equations in both rectangular and parametric form.
Varsity Tutors
Varsity Tutors: Hotmath: Conic Sections
Students can investigate the graphs of conic sections in standard form. Cirlce, ellipse, and hyperbola graphs are included.
Texas Instruments
Texas Instruments: Conics: Circles
In this study of conics, students will examine the derivation of equations for circles. There are two general equations for circles. The first is a circle whose center is at the origin, while the second is a circle whose center is not at...
Mathigon
Mathigon: Geometry: Circle and Pi: Conic Sections
The circle is one of four different shapes which can be created using "slices" through a cone, a 3-dimensional solid that has a circular base joined to a single point (called the vertex) by a curved side. If you tilt a cone, you get an...
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.
National Council of Teachers of Mathematics
The Math Forum: Conic Basics
A written description of the different conic sections is described at this site from the Math Forum. The description identifies the importance of the eccentricity in determining the type of conic.
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.
Math Words
Math words.com: Conic Sections
Examples of conic sections are given and the equation for their standard form is also given.
Alabama Learning Exchange
Alex: Conic Sections: Discovering the Degenerates
Through a mixture of online exploration, and teacher instruction, students will discover how the degenerate forms of the conic sections are formed and will be able to identify the degenerate case of each conic section.
Other
Edwin's Animated Images: Hyperbola
This site gives the focus/directrix definition of a conic. Also includes specific definition for the parabola, ellipse, and hyperbola. Includes equations for the conics in both rectangular and polar coordinates.
Other
Edwin's Animated Images: Hyperbola
This animated tutorial gives the focus/directrix definition of a conic. Also includes specific definition for the parabola, ellipse, and hyperbola. Includes equations for the conics in both rectangular and polar coordinates.
Texas Education Agency
Texas Gateway: Graphing Conic Sections: Ellipses
Given an equation, the student will use parameter changes to graph an ellipse and to identify the changes in the graph of an ellipse.
Texas Education Agency
Texas Gateway: Graphing Conic Sections: Hyperbolas
Given an equation, the student will use parameter changes to graph a hyperbola and to identify the changes in the graph of a hyperbola.
CK-12 Foundation
Ck 12: Analysis: General Forms of Conic Sections
[Free Registration/Login may be required to access all resource tools.] This lesson covers changing a general second-degree equation into the standard form of a parabola, ellipse, circle or hyperbola. Students examine guided notes,...
Texas Instruments
Texas Instruments: Solving Systems With Quadratic Equations: Systems of Conics
In this activity, students will plot the graphs of systems of equations and determine the number of real solutions of the system. Then find the solution of the system algebraically.
Texas Instruments
Texas Instruments: Conics
Three Learning Check documents on the various characteristics of parabolas, circles, ellipses, and hyperbolas.
Other
The Krell Institute: Project: Rotation of Axes
This resource provides an explanation of the equation for rotation of axes with conic sections includes an example with an ellipse.
Purple Math
Purplemath: Conics: Hyperbolas
A three-part tutorial that discusses the basic terms, definitions, and formulas related to hyperbolas.
Calculator Soup
Calculator Soup: Conical Frustum Calculator
This online calculator will calculate the various properties of a conical frustum given the 2 radii and any 1 other known variable.
National Council of Teachers of Mathematics
The Math Forum: Types of Degernate Conics
Dr. Math, in response to a student question, provides insight into degenerate cases of conic sections.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Construccion Geometrica De Las Curvas Conicas
Learn to construct conic curves with these interactive activities.
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