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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Quadratic Functions and Equations

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers vertex, intercept, and standard forms.
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Unit Plan
CK-12 Foundation

Ck 12: Analysis: Graphs of Quadratic Functions

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Students review of quadratic function graphing methods. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
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Handout
Other

Quick Math: Quadratic Equations

For Students 9th - 10th Standards
Complete step-by-step investigation of quadratic functions, allowing the user to input the function. Each step, from solving f(x) = 0 to graphing and finding extreme points, is covered in depth, via links for each step (requires...
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Unit Plan
Texas Education Agency

Texas Gateway: Analyzing the Effects of Changes in "A" on the Graph Y=ax^2 + C

For Students 9th - 10th Standards
Given verbal, graphical, or symbolic descriptions of the graph of y = ax^2 + c, the student will investigate, describe, and predict the effects on the graph when "a" is changed.
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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.
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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...
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Activity
Texas Instruments

Texas Instruments: Exploring the Vertex Form of a Quadratic Function

For Teachers 9th - 10th Standards
In this activity, you will change the parameters of the function and determine the effects on its graph and its vertex.
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Handout
Interactive Mathematics

Interactive Mathematics: Find Equation of a Quadratic Function From Its Graph

For Students 9th - 10th
A detailed explanation of how to find a quadratic equation from its graph using different methods, including using software.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Quadratic Functions and Equations

For Students 8th Standards
[Free Registration/Login may be required to access all resource tools.] Recognize a quadratic function as an equation in two variables with a specific form.
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Interactive
Quia

Quia: Graphing Quadratic Functions

For Students 9th - 10th Standards
Jeopardy type of a game will ask students to practice working with the three forms of quadratic equations. Can they: identify the form of equation, find the vertex, find the x-intercepts, identify what the graph looks like?
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Quadratic Equations

For Students 9th - 10th
Practice using your graphing calculator for solving and graphing quadratic equations. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
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Unit Plan
BBC

Bbc: Higher Bitesize Maths: Quadratic Theory

For Students 9th - 10th Standards
A tutorial on quadratics presents topics including: factoring and solving quadratics, graphing quadratic functions, using completing the square and the quadratic formula to solve functions, the discriminant and conjugates. Plenty of...
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Handout
University College London

University College London: The Graph of Y = Ax Squared + Bx + C

For Students 9th - 10th Standards
Provides a walkthrough of graphs of quadratic functions, including what factors "shift" or otherwise affect the parabola.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Bf Building a Quadratic Function From F(x) = X^2

For Teachers 9th - 10th Standards
This is the first of a series of tasks aiming at understanding the quadratic formula in a geometric way in terms of the graph of a quadratic function. Here the student works with an explicit function and studies the impact of additive...
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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.
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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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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F if.c.7.a, a sse.b.3, F if.c.7: Graphs of Quadratic

For Teachers 9th - 10th
During this task, students will realize that equivalent expressions produce the same graph. The lesson will lead to discussions about the value of different forms of equations. Aligns with F-IF.C.7.a, A-SSE.B.3, and F-IF.C.7.
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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
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Lesson Plan
PBS

Pbs Teachers: Toothpicks and Transformations [Pdf]

For Teachers 9th - 10th
Using calculators, students investigate quadratic functions using geometric toothpick designs in this instructional activity that with a review of transformations of quadratic functions, vertical and horizontal shifts, and stretches and...
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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.
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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...
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Lesson Plan
Cuemath

Cuemath: Functions

For Students 9th - 10th Standards
In this mini-activity, students will learn about the world of functions. They will explore topics such as how to represent a function, conditions for a function, how to solve a function, types of functions, and various graphs of...
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Lesson Plan
PBS

Wnet: Thirteen: Math in Basketball: Lesson Plan

For Teachers 9th - 10th
In this lesson plan, students will explore ways that mathematics are used in basketball. Students will explore the concept of a function and will learn to use function notation. Students will recognize, describe, and represent quadratic...
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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.