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Khan Academy

Khan Academy: Algebra Ii: Analyze Vertical Asymptotes of Rational Functions

For Students 9th - 10th Standards
Given the formula of a rational function, determine how it behaves around its vertical asymptote. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Algebra Ii: Construct Sinusoidal Functions

For Students 9th - 10th Standards
Given a few features of a sinusoidal function, find its formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Paul Dawkins

Paul's Online Notes: Algebra Cheat Sheet [Pdf]

For Students 6th - 8th
An algebra "cheat sheet" to use as a reference when completing algebra homework. Lists basic facts, properties, operations, formulas, and functions, as well as common errors.
Handout
Learning Wave Communications

Learning Wave: Algebra, Section 1

For Students 9th - 10th
This resource covers the basic algebraic concepts of like terms, substitution, solving one- and two-step equations, and using formulas and problem solving. Sample problems and links to application problems are included.
Activity
Help Algebra

Help algebra.com: Quadratic Formula

For Students 9th - 10th Standards
This presentation of the quadratic equation includes a discussion on the discriminant and a derivation of the quadratic formula.
Whiteboard
ClassFlow

Class Flow: Pyramids Algebra

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students apply algebraic sense to solve puzzles using an array of numbers in the shape of a pyramid.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Quadratic Equations

For Students 9th - 10th Standards
A detailed tutorial that will guide you through various methods for solving quadratic equations: factoring, square root, completing the square, and quadratic formula. Follow step-by-step examples, view video problem-solving...
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Algebra: The Slope of a Straight Line

For Students 9th - 10th Standards
Here is a site that clearly and thoroughly explains many topics surrounding the slope of a line, including slope of horizontal, vertical, parallel, and perpendicular lines in addition to the formula and concept of slope. There are...
Lesson Plan
PBS

Pbs Mathline: Aw Chute Lesson Plan

For Teachers 6th - 8th
Learners will design and construct parachutes to determine the rate of descent using the distance formula. Printable lesson
eBook
Mathigon

Mathigon: Algebra: Arithmetic and Geometric Sequences

For Students 9th - 10th Standards
This lesson focuses on arithmetic and geometric sequences using several examples and practice exercises.
Unit Plan
Mangahigh

Mangahigh: Algebra: Literal Equations

For Students 9th - 10th Standards
Students learn about the concept of literal equations by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
Lesson Plan
Georgetown University

Georgetown: Lesson Plan: Trivial Pursuits and Algebra

For Teachers 9th - 10th Standards
Learners will love this lesson! Students will do a number of hands on activities in groups. Learners will first solve the problem and then write a formula of how the answer may be found.
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Khan Academy

Khan Academy: Converting Recursive and Explicit Forms of Arithmetic Sequences

For Students 9th - 10th Standards
Given the explicit formula of an arithmetic sequence, find its recursive formula, and vice versa. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Math Is Fun

Math Is Fun: Area of Triangles Without Right Angles

For Students 9th - 10th Standards
Learn how to find the area of triangles without right angles. Find the formula to use depending on the information you know about the triangle: base and height, three sides, or two sides and an angle.
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Math Drills

Math drills.com: Algebra Worksheets

For Students 9th - 10th
Download these worksheets to sharpen your algebraic skills. Sheets focus on missing numbers, translating, simplifying and evaluating algebraic phrases, rewriting formulas, solving linear equations, systems of linear equations and inverse...
Website
Wolfram Research

Wolfram Math World: Algebra

For Students 9th - 10th Standards
MathWorld provides a basic overview of Algebra. Includes a few formulas and many links to related topics.
Handout
Understanding Algebra

Understanding Algebra: Simplifying Radical Expressions

For Students 9th - 10th Standards
The resource investigates simplifying radical expressions. The notes consist of formulas and examples.
Handout
Paul Dawkins

Paul's Online Notes: Algebra: Applications of Quadratic Equations

For Students 9th - 10th
Detailed math tutorial features notes and examples that review applications involving solving a quadratic equation including distance/rate problems and work rate problems.
Activity
Math Is Fun

Math Is Fun: Equations and Formulas

For Students 9th - 10th Standards
Learners investigate equations and formulas. The educational resource consists of notes about the concept, detailed examples, and practice problems.
Handout
Cool Math

Coolmath: Sequences With Formulas

For Students 10th - 12th Standards
Explanation and examples of using a formula to determine the nth term in a sequence.
Instructional Video
Sophia Learning

Sophia: Pre Algebra Subsection of the Act Test

For Students 9th - 10th
At the end of this video tutorial, you will understand what kinds of questions to expect when taking the pre-algebra subsection of the ACT test. You will also learn what topics are covered, some formulas to know, and some basic tips of...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Special Products of Polynomials

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Find the square of a binomial and use the sum and difference formula to find the product of binomials.
Activity
Math Medics

S.o.s. Math: Algebraic Identities

For Students 9th - 10th Standards
This online tutorial contains the binomial formula and examples.
Whiteboard
ClassFlow

Class Flow: Match Sequences Algebra

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this flipchart, students investigate patterns and sequences used in constructing various shapes using match sticks. Students then develop their introductory algebraic sense by determining the formula...