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Unit Plan
Math Planet

Math Planet: The Graph of Y = Ax^2 + Bx + C

For Students 9th - 10th Standards
A nonlinear function that can be written on the standard form ax^2 + bx + c,where a is not = 0, is called a quadratic function. All quadratic functions hava a U-shaped graph called a parabola.
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Activity
Texas Instruments

Texas Instruments: Construction Tools: Interactive Function Graphs

For Teachers 9th - 10th
Students draw a dynamic graph of the quadratic function with interactive parameters. They understand that there is only one graph of the function that changes dynamically as the values of the parameters change.
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Graphic
BBC

Bbc: Functions

For Students 9th - 10th Standards
This resource takes a look at graphs of functions, composite functions, inverse functions and how to use completing the square to solve quadratic functions. A number of examples and a practice test are offered.
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Lesson Plan
Alabama Learning Exchange

Alex: Parent Functions and Their Children

For Teachers 9th - 10th
In this lesson, students will be able to identify parent functions of linear functions, absolute value functions, and quadratic functions. Students will be presented with functions and asked to graph them by first identifying the basic...
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Activity
Texas Instruments

Texas Instruments: Video Tutorial Using the Graph Screen to Factor Quadratics

For Teachers 9th - 10th Standards
This tutorial shows you how to factor quadratic functions using the graph screen.
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Primary
J Coffman

Joseph Coffman's Lecture Notes: Modeling Data With Quadratics

For Students 9th - 10th Standards
Learners explore quadratic functions and their graphs. Vocabulary, examples, methods, and a quiz are included.
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Activity
Texas Instruments

Texas Instruments: Finding Patterns and Graphing Functions

For Teachers 9th - 10th Standards
This activity has students find patterns in the areas and perimeters of a given series of figures. Students' then use graphing calculators to graph the values and to find linear and quadratic functions to describe the patterns.
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Handout
University College London

University College London: Math Help Glossary: Keyword: Quadratic

For Students 9th - 10th Standards
A "glossary" definition of quadratic functions, including examples of quadratic and non-quadratic functions, and links to related definitions as well and graphs.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Le What Functions Do Two Graph Points Determine?

For Teachers 9th - 10th Standards
In this task, young scholars find a unique linear function, a unique exponential function, and more than one quadratic function that go through the same two points on the coordinate grid. Aligns with F-LE.A.
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Activity
Texas Instruments

Texas Instruments: The Standard Form of a Quadratic Equation

For Teachers 9th - 10th Standards
In this activity, students explore the standard form of a quadratic equation, y = ax 2 + bx + c. They explore how the x-intercepts (zeros), y-intercept, and vertex are related to the graph of the standard form of a quadratic function.
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Interactive
Concord Consortium

Seeing Math: Quadratic Transformer

For Students 9th - 10th
The Quadratic Transformer was developed to support the learning of quadratic functions, and in particular to help you understand the connections between symbolic and graphic representations. Indirectly, it also helps you connect either...
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Unknown Type
University of Vienna (Austria)

University of Vienna: The Big Function Graph Puzzle

For Students 9th - 10th Standards
Interactive matching game where linear and quadratic expressions are matched to their associated functions graphs. Site features over 100 graphs, although only six are used at one time.
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Graphic
William Mueller

William Mueller: Families of Functions

For Students 9th - 10th Standards
Meet the Function Family! Each member of the family has examples of their graphs and descriptions of the types of real-world situation that produce those graphs.
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Activity
Texas Instruments

Texas Instruments: Graphs of Quadratic Functions in Vertex Form

For Teachers 9th - 10th
TI Explorations books has a great activity for TI InterActive! in graphing parabolas in vertex form. What if you don't have TI InterActive! or a lab to take your students, but you do have a class set of TI-83 or TI-84. This activity...
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Activity
Texas Instruments

Texas Instruments: Transformations of Quadratics

For Teachers 9th - 10th
Series of LearningCheck documents to assess student knowledge of quadratic transformations.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Identification of Quadratic Models

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers fitting a data set to a quadratic equation.
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Activity
Wyzant

Wyzant: Function Graphing Calculator

For Students 9th - 10th Standards
Students input a function in either y= of f(x)= form, and then the site from WyzAnt does the rest! A detailed graph is shown in less than a second. Students can change the window used to view the graph as well as whether to have...
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Unknown Type
Khan Academy

Khan Academy: Graph Parabolas in All Forms

For Students 9th - 10th
Graph quadratic functions given in any form.
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Unit Plan
PBS

Pbs: String Product: Y = X^2

For Students 6th - 8th
Examine how a giant sculpture at the National Museum of Mathematics represents the solutions to the equation y=x^2. This video focuses on the basics of graphing quadratic functions and the relationship between x and y values along the...
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Unit Plan
Texas Education Agency

Texas Gateway: Quadratics: Connecting Roots, Zeros, and X Intercepts

For Students 9th - 10th Standards
Given a quadratic equation, the student will make connections among the solutions (roots) of the quadratic equation, the zeros of their related functions, and the horizontal intercepts (x-intercepts) of the graph of the function.
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Activity
Integrated Publishing

Integrated Publishing: Graphical Interpretation of Roots

For Students 9th - 10th Standards
This site compares the graphs of three quadratic functions, and explains how certain characteristics of the graph relate to properties of the equations and their solutions. Contains practice problems, including real-world examples.
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Activity
Texas Instruments

Texas Instruments: Bouncing Ball

For Teachers 9th - 10th Standards
In this experiment, students collect the height versus time data of a bouncing ball using the CBR 2. This activity investigates the values of height, time, and the coefficient A in the quadratic equation, which describes the behavior of...
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Activity
Texas Instruments

Texas Instruments: Investigating the Parabola in Vertex Form (Y = Ax2

For Teachers 9th - 10th
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...
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Quadratic Inequalities

For Students 11th - 12th
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn about graphing and solving quadratic inequalities. Students examine guided notes, review guided practice, watch instructional videos...