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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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Activity
Texas Instruments

Texas Instruments: Behaviors Quadratic Functions

For Teachers 9th - 10th
This StudyCard set teaches and tests on the quadratic function. Shows connection between the function parameters and the resulting geometric behaviors of the quadratic function. Use with Foundations for College Mathematics, ch. 2.5, 9.1.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Bf, a Sse Building a General Quadratic Function

For Teachers 9th - 10th
This task is a followup to the one called 'Building an explicit quadratic function.' In this one, students follow the same process with a general quadratic function. The operations take place in the opposite order and the goal is to find...
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Activity
Analyze Math

Analyze Math: Quadratic Functions (1)

For Students 9th - 10th Standards
Students are introduced to quadratic functions. The tutorial explores the equation of a quadratic function, intercepts, graphing, and points of intersection. The activity consists of examples with detailed solutions.
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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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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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Activity
Texas Instruments

Texas Instruments: Floral Shop Math

For Teachers 9th - 10th
Students will create quadratic functions that model revenue collected and profit earned from selling bouquets in a flower shop. The students can use graphing calculators to identify the maximum value for each function. Once they identify...
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Activity
Analyze Math

Analyze Math: Quadratic Functions: Problems (1)

For Students 9th - 10th Standards
The tutorial demonstrates how to use quadratic functions to solve word problems. Some topics discussed are minimum points, maximum points, and vertex. The activity consists of examples with detailed solutions.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Apr Zeroes, Factorization of Quadratic Polynomial Ii

For Teachers 9th - 10th Standards
This task is intended to help learners see more clearly the link between factorization of polynomials and zeroes of polynomial functions. The argument here generalizes to show that a polynomial of degree d can have at most d roots....
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Apr Zeroes and Factorization of Quadratic Polynomial

For Teachers 9th - 10th Standards
This is the first of a series of problems building to an understanding of an important property of polynomial functions, that a polynomial of degree d can have at most d roots. Aligns with A-APR.B.2.
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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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Activity
Discovery Education

Discovery Education: Web Math: Using the Quadratic Formula

For Students 9th - 10th Standards
This WebMath site provides interactive problem solvers to understand the quadratic formula and solve quadratic equations by factoring. In addition to providing answers, these 'solvers' show the step-by-step method in which to get there.
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Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Definition of Quadratic Function

For Students 9th - 10th
Dr. Math briefly defines a quadratic function.
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Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Quadratic Function (Changing Coefficients)

For Students 9th - 10th Standards
The Dr. gives information about a method for deciding how changing the coefficients of a quadratic function affects a graph. The page also leaves some questions for the reader to ponder.
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Activity
Math Medics

S.o.s. Math: Quadratic Equations: Basic Definitions

For Students 9th - 10th Standards
This S.O.S. Math tutorial offers definitions and examples of quadratic equations and quadratic functions.
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Unit Plan
Khan Academy

Khan Academy: Solving Quadratics by Completing the Square

For Students 9th - 10th Standards
Practice some multiple-choice problems solving quadratics by completing the square.
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Unit Plan
Khan Academy

Khan Academy: Graph Quadratics in Vertex Form

For Students 9th - 10th Standards
Graph quadratic functions that are given in the vertex form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Quadratic Formula

For Students 9th - 10th Standards
Solve quadratic equations using the quadratic formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Number of Solutions of Quadratic Equations

For Students 9th - 10th
Analyze quadratic equations in order to determine how many different real number solutions they have. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Quadratic Word Problems (Standard Form)

For Students 9th - 10th
Solve real-world word problems that involve quadratic models. In this exercise, that models are given in standard form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
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Unit Plan
Khan Academy

Khan Academy: Solve Quadratics by Factoring (Intro)

For Students 9th - 10th
Solve quadratic equations of the form x^2+bx+c=0 that can be rewritten according to their linear factors. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Solve Quadratics by Factoring

For Students 9th - 10th Standards
Solve quadratic equations of the form ax^2+bx+c=0 that can be rewritten according to their linear factors. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Quadratics by Taking Square Roots

For Students 9th - 10th
Analyze the process of solving a quadratic equation by taking the square root. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Quadratics by Taking Square Roots

For Students 9th - 10th Standards
Solve quadratic equations of the form (x+a)squared-b=0. These can be solved using square roots. For example, solve (x-5)squared-4=0. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...