Unit Plan
CK-12 Foundation

Ck 12: Algebra: Factorization of Quadratic Expressions

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to factor quadratic expressions.
Unit Plan
Khan Academy

Khan Academy: Factoring Quadratics Intro

For Students 9th - 10th
Factor quadratics of the form x squared+bx+c. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Factoring When the Leading Coefficient Equals 1

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers factoring quadratics when the leading coefficient is 1.
Activity
Wyzant

Wyzant: Equation Calculator

For Students 9th - 10th
Students can input an equation and have the site solve it for them, complete with steps shown and explanations given along the way. Equations must be simple, first- or second-degree with only one variable. A quick list of rules to follow...
Interactive
Shodor Education Foundation

Shodor Interactivate: Algebra Four

For Students 9th - 10th Standards
A game for two players to for a connect four type of game where students solve equations (several difficulty levels of quadratic and/or linear equations)to drop a chip.
Activity
University of North Carolina

S University of North Carolina Wilmington: Olving Equations Algebraically

For Students 9th - 10th Standards
Site provides tutorial on solving algebraic equations including radical equations, quadratic equations, polynomial equations, fractional equations, absolute value equations.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Quadratic Functions and Their Graphs

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find the x-intercepts, vertex, axis of symmetry, and y-intercept of a parabola.
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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
Other

Math Mistakes: Common Algebra Mistakes

For Students 9th - 10th
Learn from other student's mistakes by reviewing examples of the following Algebra topics: rational expressions, radical expressions, function notation, solving linear equations, solving linear inequalities, solving quadratic equations,...
Unit Plan
Cool Math

Coolmath: The Quadratic Formula

For Students 9th - 10th Standards
Reference material and practice problems using the quadratic formula.
Unit Plan
CK-12 Foundation

Ck 12: Analysis: Methods for Solving Quadratic Functions

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson applies factoring a quadratic equation to other types of polynomials that are in "quadratic form."
Activity
Help Algebra

Help algebra.com: Solving Quadratics by Factoring

For Students 9th - 10th Standards
Tips for factoring quadratics are given and demonstrated in several examples. The examples include quadratics that have both two and three terms.
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Khan Academy

Khan Academy: Algebra I: Compare Quadratic Functions

For Students 9th - 10th
Compare the properties of two quadratic functions, each represented in a different way. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Understanding the graphs of a parabola given equations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Handout
Other

Mathway: Algebra Formulas

For Students 9th - 10th Standards
Comprehensive resource provides algebra formulas for exponents, absolute value, factoring Pythagorean Theorem, linear equations, quadratic formula, distance formula, midpoint formula, and slope of a line through two points.
Lesson Plan
Alabama Learning Exchange

Alex: Zero Product Property

For Teachers 9th - 10th Standards
The zero product property allows you to solve a quadratic equation by converting it into two linear equations. This is a common strategy of algebra--to break down a problem into simpler parts, each solved by previously learned methods.
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Khan Academy

Khan Academy: Features of Quadratic Functions: Strategy

For Students 9th - 10th Standards
Practice these multiple-choice problems over features of quadratic functions.
Unknown Type
Khan Academy

Khan Academy: Features of Quadratic Functions

For Students 9th - 10th Standards
practice these multiple-choice problems over features of quadratic functions.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Solving Rational Equations Using Cross Multiplication

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving rational equations using cross-multiplication.
Unit Plan
Khan Academy

Khan Academy: Range of Quadratic Functions

For Students 9th - 10th
Given the equation of a quadratic function, determine its range. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Comparing Methods for Solving Quadratics

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Practice choosing methods for solving quadratic problems.
Unit Plan
Khan Academy

Khan Academy: Solve Equations Using Structure

For Students 9th - 10th
Solve advanced equations by strategically using quadratic factorization methods. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Other

Kuta Software Llc: Algebra Worksheets

For Teachers 9th - 10th
Free downloadable algebra worksheets covering the basics, equations, linear equations, inequalities, trigonometry, exponents, polynomials, quadratic functions, radical expressions, rational expressions and word problems.
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 students the opportunity to make connections between equations and the geometry of the graphs. Aligns with A-REI.C.7and A-REI.D.10.