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.
Handout
Other

Platonic Realms: Function

For Students 9th - 10th Standards
Resource provides an introduction to conics. A picture of each conic, the definition, and a brief discussion about the standard form of conic equations are given, along with encouragement to master conics.
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.
Unknown Type
Khan Academy

Khan Academy: Write Standard Equation of a Circle

For Students 9th - 10th Standards
Given the graph of a circle or its features, find its standard equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Features of a Circle From Its Standard Equation

For Students 9th - 10th Standards
Find the center and radius of a circle given the equation in standard form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Website
National Council of Teachers of Mathematics

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

For Students 9th - 10th Standards
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.
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.
Unknown Type
Khan Academy

Khan Academy: Write Standard Equation of a Circle

For Students 9th - 10th Standards
Given the graph of a circle or its features, practice finding its standard equation.
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.
Unit Plan
CK-12 Foundation

Ck 12: Analysis: Focal Property of Ellipses

For Students 10th - 12th
[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...
Activity
Discovery Education

Discovery Education: Web Math: Graphing Ellipses

For Students 9th - 10th Standards
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.
PPT
Sophia Learning

Sophia: Finding the Equation for an Ellipse: Lesson 2

For Students 9th - 10th Standards
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."
PPT
Sophia Learning

Sophia: Finding the Equation for an Ellipse: Lesson 1

For Students 9th - 10th Standards
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."
Handout
Math Words

Math words.com: Hyperbola

For Students 9th - 10th
A definition for what a hyperbola is along with example diagrams of what horizontal and vertical hyperbolas are and gives the standard form equation.