CK-12 Foundation
Ck 12: Algebra: Use Square Roots to Solve Quadratic Equations
[Free Registration/Login may be required to access all resource tools.] Use square roots to solve quadratic equations.
Integrated Publishing
Integrated Publishing: Rational and Irrational Numbers
Content, suitable for an introductory algebra course, explains the difference between rational and irrational numbers, how to rationalize the denominator, how to evaluate radicals and the square root process. Practice problems included.
Common Core Sheets
Common Core Sheets: The Number System 8.ns.2 Worksheets
Print or create worksheets to assess students' understanding of radicals, square roots, and irrational numbers.
Integrated Publishing
Integrated Publishing: Roots, Exponents, and Radicals
Information on powers, roots, exponents, and radicals.
University of Houston
University of Houston: Engines of Our Ingenuity: Hero(n) of Alexandria
Describes the life of Hero of Alexandria and discusses Hero's contribution to the development of the steam engine. Text is the actual radio transcript of a syndicated radio broadcast on invention and ingenuity.
CK-12 Foundation
Ck 12: Algebra: Solving Quadratic Equations Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review solving quadratic equations. Examples are included.
Cool Math
Coolmath: Solving Quadratics Recap
This CoolMath resource reviews the ways to solve quadratic equations: factoring, finding square roots, and using the quadratic formula.
Cool Math
Coolmath: Solving Quadratics the Square Root Trick
This CoolMath resource will help students solve quadratic equations with a square roots trick instead of through factoring.
PBS
Pbs Learning Media: Exponents and Radicals: Targeted Math Instruction
This lesson focuses on exponents and radicals as they apply to problems involving squares, perfect squares, and square roots.
Quia
Ixl Learning: Irrational Numbers
Brush up on your math skills relating to irrational numbers then try some practice problems to test your understanding.
Help Algebra
Help algebra.com: How to Rationalize the Denominator
What do you do if the denominator contains a radical? This article explains how to rationalize a denominator that contains square roots, higher roots and the sums and differences of square roots. The examples also include problems that...
Help Algebra
Help algebra.com: Rationalizing the Denominator
Learn to simplify radical expressions by removing radicals from denominators. The demonstration includes both single radicals and binomials that require the use of a conjugate.
Help Algebra
Help algebra.com: Roots
After defining roots (radicals), this resource focuses on square roots. Examples are given to demonstrate how to simplify, find principal roots, and gives several properties of square roots.
Help Algebra
Help algebra.com: Simplifying Radical Expressions
Simplifying radicals that do not contain perfect squares can be done easily by following the steps outlined on this resource. Use the examples to see exactly how to do this.
Hofstra University
Hofstra University: Radicals and Rational Exponents
Interactive review of radicals and rational exponents. Students can enter their answers to questions and be told in the right sidebar whither they are right or wrong. There is also a help button that gives the answer and an explanation.
Fun Brain
Fun Brain: Tic Tac Toe Squares
Players simplify square roots to win the tic tac toe learning game.
Oswego City School District
Regents Exam Prep Center: Multiplication and Division of Radicals
Learn the steps necessary for multiplying and dividing radicals. The examples are easy to follow.
Doina Popovici
Math Play: Powers Concentration Game
A concentration game that allows students to show off their knowledge of powers and square roots.
Quia
Quia: Square Roots (Concentration Game)
This concentration game explores square roots. There is a link to a list of the numbers being used so students can check their answers.
Math Is Fun
Math Is Fun: Squares and Square Roots
The learning activity examines squares and square roots. Topics include perfect squares, how to square a number, and the square root symbol. The resource consists of explanations and examples.
Interactive Mathematics
Interactive Mathematics: Simplest Radical Form
The laws for simplifying radicals are presented along with several examples and exercises that put the laws to practice.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Square Roots
Find a quick, concise explanation of square roots. An example is given and clearly explained.
Wolfram Research
Wolfram Math World: Square Root
This math site from Mathworld.com explains what a square root is including information on imaginary numbers and many links. This site also addresses the continued fractions of positive real square roots, in particular the square root of...
Other
Math Pages: Ancient Square Roots
This site from Math Pages proivdes information and gives the Babylonian method for solving square root equations. The site is very intense and in-depth with good information. The material is pretty intense, however, and a background...