Wolfram Research
Wolfram Math World: Parabola
This is an excellent site on parabolas. Examples and formulas are given.
University of St. Andrews (UK)
University of St. Andrews: Parabola
This is a brief lesson on the parabola. The lesson also has links to related topics.
University of Georgia
University of Georgia: Lessons on Parabolas
Nine lessons on parabolas are presented here. The lessons progress from the basics of parabolas (definition, algebraic representation of parabolas) to more advanced topics (ie. tangents to parabolas, parabolas in polar form).
Cool Math
Coolmath: Pre Calculus More on Sideways Parabolas
This CoolMath resource provides extended learning on the topic of "sideways parabolas" and how to graph them.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Applying the Definition of a Parabola
Dr. Math responds to a student question about parabolas. The student asks a series of questions about a parabola, including how to derive the formula of a parabola from the definition, a parabola is the set of all point equal distance...
Texas Instruments
Texas Instruments: Investigating the Parabola in Vertex Form (Y = Ax2
In this activity, students investigate the standard form of the quadratic function, y = ax^2 + bx + c. They investigate the changes on the graph of a quadratic equation that result from changes in A, B, and C. They also locate the vertex...
Texas Instruments
Texas Instruments: Zeros of a Parabola
Students are introduced to an interesting property of parabolas and a method of proving that property using the TI-89 scripts. They then use the CAS of their TI-89 to generalize upon specific results.
Texas Instruments
Texas Instruments: Parabolas: Numb3 Rs: Structural Corruption
Based off of the hit television show NUMB3RS, this lesson helps students understand how changing the values of y=a(x-b)^2+c changes the graph of the associated parabola. This is framed in the context of a bridge jumper, who enters the...
Texas Instruments
Texas Instruments: Writing Equations of Parabolas in Vertex Form
Students use their knowledge of the vertex form of a quadratic equation to graph parabolas, given a specific move to make.
Other
Math Pages: Parabola Through Four Points
This resource explains how a parabola is found through four points. There are diagrams to go along with the information.
Oswego City School District
Regents Exam Prep Center: Parabolas
Students will learn about parabolas and how to graph them. Use the given lesson plan and examples to help support instruction and solve the practice problems.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Parabola
Thirty-two problems present a variety of practice working with parabolas. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check...
Government of Alberta
Learn Alberta: Math Interactives: Exploring Parabolas and Polynomial Equations
This multimedia Learn Alberta math resource looks at how parabolas and polynomial equations are used to study an object's flight path. The accompanying interactive component lets students explore and make comparisons of the flight paths...
Other
Center for Technology and Teacher Education: Parabola Lesson Plan
This site is a lesson plan on construction of a parabola using the definition. Geometer's Sketch Pad software is beneficial for the lesson. Through the lesson young scholars develop gemetric constructions of parabolas, use the distance...
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.
Discovery Education
Discovery Education: Web Math: Graphing Parabolas
WebMath offers a java applet that allows you to input the equation of a parabola, in one of many forms, and gives you a graph of the parabola along with an explanation of how the graph was drawn.
Khan Academy
Khan Academy: Equation of a Parabola From Focus and Directrix
Given the focus and the directrix of a parabola, find its equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Johan Claeys
Math Abundance: The Parabola
Defines parabolas, their properties, gives parametric equations, tangent line in a point D of a parabola, etc.
CK-12 Foundation
Ck 12: Analysis: Parabolas and the Distance Formula
[Free Registration/Login may be required to access all resource tools.] Definition of a parabola, exploring a parabola using the distance formula.
Khan Academy
Khan Academy: Start Here! Overview of Modeling Grass With Parabolas
This is an overview of modeling grass with parabolas. In this topic we're going to explore how realistic blades of grass are modeled using parabolic arcs. It include two lessons: Lesson 1: Modeling grass with parabolas (Grades 5+) and...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Vertex of a Parabola
Find a quick, concise explanation of the vertex of a parabola. Examples are given and clearly explained.
National Council of Teachers of Mathematics
The Math Forum: Exploring Parabolas
A lesson plan using the computers to help students understand the various forms of equations of parabola. The site requires students to use the computer and offers a possible assessment of the instructional activity.
Cool Math
Coolmath: Intro to Graphing Parabolas
Learn how to graph parabolas with this quick tutorial.
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