Unit Plan
Texas Education Agency

Texas Gateway: Introducing Conic Sections

For Students 9th - 10th
Given a verbal description or a pictorial representation, the student will describe a conic section as the intersection of a cone and a plane.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Conic Sections

For Students 9th - 10th Standards
Hotmath provides 26 practice problems relating to conic sections. Each of the practice problems include a step-by-step guide for solving their conic.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 10.1 Conic Sections

For Students 9th - 10th Standards
The conic sections are the cross-sections of a double-napped cone. Depending on the angle of the plane with respect to the cone, a conic section may be a circle, an ellipse, a parabola, or a hyperbola.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: General Form for Conic Sections

For Students 9th - 10th Standards
Students investigate the general form of the equation for a conic section. This interactive tool evaluates the changes that occur from using different coefficients in the equation.
Handout
Wolfram Research

Wolfram Math World: Conic Sections

For Students 9th - 10th Standards
A fairly comprehensive look at various types of conic sections is presented. Most of the information is presented as introductory, with an emphasis on terminology. Through an understanding of the terminology, one can understand the...
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: The Origins of Conic Sections

For Students 9th - 10th
Dr. Math, in reply to a student question, gives background information on the origin of conic sections. Links also are included for further information.
Activity
Texas Instruments

Texas Instruments: Conic Sections

For Teachers 9th - 10th Standards
These questions ask students to write the equations of conic sections given a variety of information. Students are also asked to find the foci of an ellipse and the asymptotes of a hyperbola. Solutions and explanations are included.
Unknown Type
McGraw Hill

Glencoe: Quiz on the Rectangular and Parametric Form of Conic Sections

For Students 9th - 10th Standards
The online assessment demonstrates understanding of advanced mathematical concepts in Trigonometry. The questions assess students on the rectangular and parametric form of conic sections.
Unit Plan
CK-12 Foundation

Ck 12: Analysis: General Forms of Conic Sections

For Students 9th - 10th
[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...
Activity
Math Is Fun

Math Is Fun: Conic Sections

For Students 9th - 10th Standards
Students learn about conic sections. Topics include eccentricity, directrix, and the general equation. The tutorial consists of notes, examples, and practice problems to check for comprehension.
Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Parallel Lines and Conic Sections

For Students 9th - 10th
Dr. Math and a couple of students discuss the possibility of whether parallel lines can be constructed as a degenerate case of conics.
Graphic
Wolfram Research

Wolfram Alpha: Conic Sections

For Students 9th - 10th Standards
The resource consists of a geometry animation that shows conic sections.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Uses of Conics

For Students 9th - 10th Standards
Wondering who uses conics and where they occur in our lives? Dr. Math provides some answers to how math concepts involving conic sections, perabolas, hyperbolas, and ellipses are applied practically.
Activity
Shodor Education Foundation

Shodor Interactivate: Conic Flyer

For Students 9th - 10th
"This applet allows the user to create graphs of conic sections. Using slider bars, one can manipulate the function to change the constant values and view the effects of those changes."
Handout
Wolfram Research

Wolfram Mathworld: Conic Section Directrix

For Students 9th - 10th Standards
Explains how the directrix relates to the three conic sections: parabola, ellipse, and hyperbola. Includes a definition, formulas, and links to related topics.
Lesson Plan
Alabama Learning Exchange

Alex: Conic Sections: Discovering the Degenerates

For Teachers 9th - 10th
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.
Unit Plan
Texas Education Agency

Texas Gateway: Graphing Conic Sections: Ellipses

For Students 9th - 10th
Given an equation, the student will use parameter changes to graph an ellipse and to identify the changes in the graph of an ellipse.
Unit Plan
Texas Education Agency

Texas Gateway: Graphing Conic Sections: Hyperbolas

For Students 9th - 10th
Given an equation, the student will use parameter changes to graph a hyperbola and to identify the changes in the graph of a hyperbola.
Activity
Texas Instruments

Texas Instruments: Conic Equations

For Teachers 9th - 10th Standards
This Learn Check file is a review of writing conic sections given the graph of a conic section. Students are asked to use the graphs to write the equations for a ellipse, circle, parabola, and hyperbola.
Activity
Texas Instruments

Texas Instruments: Conics as a Locus of Points

For Teachers 6th - 8th
Students investigate the definition of a parabola through one of its geometric definitions. They study conic sections. They examine an ellipse as a locus of points such that the sum of distances from the foci to the traced path is constant.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Conic Sections

For Students 9th - 10th Standards
Students can investigate the graphs of conic sections in standard form. Cirlce, ellipse, and hyperbola graphs are included.
Handout
Math Words

Math words.com: Conic Sections

For Students 9th - 10th Standards
Examples of conic sections are given and the equation for their standard form is also given.
Handout
National Council of Teachers of Mathematics

The Math Forum: Conic Basics

For Students 9th - 10th
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.
Website
Discovery Education

Discovery Education: Web Math: Plots and Geometry

For Students 9th - 10th Standards
This site provides descriptions and helpful hints regarding conic sections - circles, parabolas, ellipses, and hyperbolas. Content also includes interactive problem solvers complete with a full analysis of the math behind the answer.

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