Activity
Texas Instruments

Texas Instruments: Quadratic Intercepts

For Teachers 9th - 10th Standards
This set of multiple choice questions asks students to find the intercepts and vertices of quadratic functions. Solutions are included.
Lesson Plan
Khan Academy

Khan: Lsn 11 Ops W Polynomials, Rewriting Expressions, Quad Functions, Equations

For Students 9th - 10th
Lesson 1 of 4 for Passport to Advanced Math. Students will add, subtract, and multiply polynomials. They will build quadratic functions and write equations to represent a context.
Unknown Type
Khan Academy

Khan Academy: Range of Quadratic Functions

For Students 9th - 10th Standards
Given the equation of a quadratic function, determine its range.
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.
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.
Unit Plan
Khan Academy

Khan Academy: Graph Quadratics in Factored Form

For Students 9th - 10th Standards
Graph quadratic functions that are given in factored form. For example, graph y=(x-4)(x+2). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Texas Instruments

Texas Instruments: Quadratic Functions

For Teachers 9th - 10th
Students can use quadratic functions to solve physical problems. Students can use the y = a(x-h)^2 + k form and the velocity formula (0 = -16t^2 + vt + s).
Activity
Texas Instruments

Texas Instruments: Taks Activities Objective 5: Quadratic Functions

For Teachers 9th - 10th
For problem situations, the student analyzes graphs of quadratic functions and draws conclusions
Lesson Plan
PBS

Pbs Teachers: Toothpicks and Transformations [Pdf]

For Teachers 9th - 10th
Using calculators, learners investigate quadratic functions using geometric toothpick designs in this lesson plan that with a review of transformations of quadratic functions, vertical and horizontal shifts, and stretches and shrinks.
Unit Plan
Texas Education Agency

Texas Gateway: Solving Quadratic Equations Using Graphs

For Students 9th - 10th
Given a quadratic equation, the student will use graphical methods to solve the equation.
Interactive
Lawrence Hall of Science

The Math Page: Topics in Pre Calculus: Quadratics

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains quadratic functions, including graphing functions and solving equations using factoring. There are example problems solved, problems for the student to attempt, and answers to the...
Unit Plan
Texas Education Agency

Texas Gateway: Determining Parent Functions (Verbal/graph)

For Students 9th - 10th Standards
Given a graph or verbal description of a function, the student will determine whether the parent function is quadratic or linear.
Unit Plan
Interactive Mathematics

Interactive Mathematics: Quadratic Equations

For Students 9th - 10th Standards
Using modeling, the world of quadratics is explored. Learn how to solve quadratics using methods of factoring, completing the square, and the quadratic formula. Also included are methods for graphing quadratic functions.
Activity
Texas Instruments

Texas Instruments: Exploring Standard Form of a Quadratic Function

For Teachers 9th - 10th
Students explore y=ax^2+bx+c using the transform graphing application. Teacher calculator is used with Navigator to send device settings, the equation format and initial coefficient values to all students. Worksheet includes all student...
Lesson Plan
Cuemath

Cuemath: Transformation of Functions

For Students 9th - 10th Standards
In this mini-lesson, we will learn about transformations of functions, transformations of exponential functions, and transformations of quadratic functions. Check out the interactive simulations to know more about the lesson and try your...
Handout
CK-12 Foundation

Ck 12: Algebra: Graphing Quadratic Equations Study Guide

For Students 9th - 10th
This comprehensive study guide highlights the main terms and formulas needed to review graphing quadratic equations. Examples are included.
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...
Handout
Other

Completing the Square to Get a Quadratic Function Into Standard Form

For Students 9th - 10th Standards
This site shows students how to put a quadratic function into standard form by completing the square.
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.
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.
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.
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...
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.
Lesson Plan
Illustrative Mathematics

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

For Teachers 9th - 10th Standards
For this task, students 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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