Activity
Texas Instruments

Texas Instruments: Quadratic Graphing Investigation

For Teachers 9th - 10th
This Computer Algebra System (CAS) activity encourages students to investigate the characteristics of a quadratic graph. Students analyze the effects of the coefficients on the graph.
Website
Discovery Education

Discovery Education: Web Math: Algebra

For Students 9th - 10th
This WebMath site provides links to tutorials and lessons in both Algebra I and II. Links to topics such as factoring, solving equations, polynomials, simplifying equations, graphing, and much more.
Activity
Texas Instruments

Texas Instruments: Quadratic Inequalities

For Teachers 9th - 10th
Students solve quadratic inequalities using graphs, tables, and algebraic methods.
Activity
Texas Instruments

Texas Instruments: Solving Systems With Quadratic Equations: Systems of Conics

For Teachers 9th - 10th Standards
In this activity, students will plot the graphs of systems of equations and determine the number of real solutions of the system. Then find the solution of the system algebraically.
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.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Factorization of Quadratic Expressions

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Factor quadratic expressions in which the coefficients a, b, and/or c are negative.
Activity
Cool Math

Coolmath: Graphing by Completing the Square Intro

For Students 6th - 9th Standards
This algebra lesson introduces how to complete the square in a parabola.
Activity
Cool Math

Coolmath: Graphing by Completing the Square Freaky Things That Can Happen

For Students 6th - 9th
This algebra lesson shows how to deal with different types of things that can happen when you are completing the square.
Activity
Cool Math

Coolmath: Intro to Graphing Parabolas

For Students 6th - 8th
Learn how to graph parabolas with this quick tutorial.
Activity
Texas Instruments

Texas Instruments: Glencoe Algebra 2: Quadratic Inequalities and the Test Menu

For Teachers 9th - 10th Standards
Students will solve inequalities.
Activity
Texas Instruments

Texas Instruments: Inequalities, They Are Not Just Linear Anymore!

For Teachers 9th - 10th Standards
Students study quadratic relationships and explore the process of graphing quadratic inequalities and systems of quadratic inequalities. They will solve these inequalities algebraically and graph them on a coordinate plane.
Whiteboard
ClassFlow

Class Flow: Quadratic Curves Algebra

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this flipchart, students interpret and graph quadratic curves. Students solve quadratic equations and then use the graphing features to graph the resultant quadratic curve.
Activity
Interactive Mathematics

Interactive Mathematics: The Graph of a Function

For Students 9th - 10th Standards
Several examples are presented to demonstrate the process of graphing functions, including linear, quadratic, and rational functions.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Identification of Quadratic Models

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Understanding the equations of parabolas
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A rei.c.7 & a rei.d.10: A Linear and Quadratic System

For Teachers 9th - 10th
The purpose of this task is to give learners the opportunity to make connections between equations and the geometry of the graphs. Aligns with A-REI.C.7and A-REI.D.10.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Quadratic Inequalities

For Students 9th - 10th
Using this tutorial, you'll learn two methods of solving quadratic inequalities: using a sign graph of factors and using the test-point method. Offers step-by-step written examples, and practice problems for you to complete.
Interactive
Oswego City School District

Regents Exam Prep Center: Interactive Games and Puzzles for Algebra 2 & Trig

For Students 9th - 10th
This educational resource consists of interactive games and puzzles that investigate algebra and trigonometry concepts. Some concepts included are functions, quadratics, and trigonometric graphs. [Requires Java Plugin.]
Lesson Plan
Khan Academy

Khan Academy: Lsn 13: Systems of Equations, Algebraic and Graphical Representations

For Teachers 9th - 10th Standards
Lesson 3 of 4 for Passport to Advanced Math. Learners will solve systems of equations in two variables in which one equation is linear and the other equation is quadratic or another nonlinear equation; relate properties of the function f...
Activity
Help Algebra

Help algebra.com: Polynomial and Rational Inequalities

For Students 9th - 10th
Learn to solve inequalities and how to graph their solutions on a number line. The examples contain quadratics and rational expressions.
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.
Unknown Type
Other

University of Wisconsin: Basic Algebra

For Students 9th - 10th Standards
This college site offers a variety of problems and answers. Problems are divided into topic areas for easy access. Also offers quizzes with each topic.
Activity
Cool Math

Coolmath: Graphing Parabolas Part 3

For Students 6th - 8th
A quick tutorial on a parabola flipped upside down.
Activity
Cool Math

Coolmath: Graphing Parabolas Part 4

For Students 6th - 8th
Find out how the equations shift the shape of the parabola.
Whiteboard
ClassFlow

Class Flow: Graph of an Equation

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In 1637, Rene Descartes revolutionized the study of mathematics by joining its two major fields, algebra and geometry. With Descartes's coordinate plane, geometric concepts could be formulated...