Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Pythagorean Theorem
Practice using your graphing calculator for real number problems, including the Pythagorean Theorem. 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...
Help Algebra
Help algebra.com: Quadratic Equations
This article gives a definition of quadratic equations, then demonstrates how to solve them. Factoring, completing the square and the quadratic formula are the methods described. The examples are accompanied by lists of steps for solving...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Irrational Numbers; Rational Square Roots
Dr. Math responds to how one can tell whether a number is rational or irrational. A proof is discussed in the response.
Khan Academy
Khan Academy: Approximating Square Roots Walk Through
Tutorial covers a series of questions, examples, and practice that will help students learn how to approximate square roots.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Solving Quadratic Equations With Square Roots
Find a quick, concise explanation for how to solve quadratic equations using square roots. An example is given and clearly explained.
CK-12 Foundation
Ck 12: Algebra: Use Square Roots to Solve Quadratic Equations
[Free Registration/Login may be required to access all resource tools.] Learn how to solve quadratic equations by using square roots.
PBS
Pbs: The Story of Jazz
A supplement to a ten-part film series on jazz, this resource describes the growth and development of jazz music from the gritty streets of New Orleans to the Lincoln Gardens on Chicago's south side, where Louis Armstrong first won fame,...
Khan Academy
Khan Academy: Square Roots of Perfect Squares
Resource provides review and practice of how to find the square root of perfect squares.
Doina Popovici
Math Play: Square Root Concentration Game
An interactive game where students can sharpen their skills for calculating simple square roots.
Mr. Martini's Classroom
Mr. Martini's Classroom: Square Roots
Practice solving square roots by changing the difficulty and assessing knowledge with a quiz.
ClassFlow
Class Flow: Braun Right Triangles
[Free Registration/Login Required] This lesson is an exploration of variations of right triangles. Use as a warm up on square roots introduced in this flipchart. [Requires Adobe Reader.]
That Quiz
That Quiz: Raices and Potencias
This interactive activity is designed to practice the mathematical concepts of exponents and square roots. This activity may be used to develop students' understanding of these mathematical concepts.
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.
Texas Instruments
Texas Instruments: Quadratic Equations
Students solve quadratic equations by factoring and finding square roots, as well as by graphing.
Sophia Learning
Sophia: Evaluating Complex Numeric Expressions: Lesson 2
This lesson will go over how to evaluate numerical with parentheses, exponents, square roots and/or absolute values.
Sophia Learning
Sophia: Simplifying Radical Expressions: Lesson 5
This lesson will provide examples simplifying radical expression by applying the properties of square roots and prime factorization. It is 5 of 8 in the series titled "Simplifying Radical Expressions."
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...
Doina Popovici
Math Play: Powers Concentration Game
A concentration game that allows students to show off their knowledge of powers and square roots.
CK-12 Foundation
Ck 12: Algebra: Irrational Square Roots
[Free Registration/Login may be required to access all resource tools.] Find approximate solutions to equations involving irrational numbers.
CK-12 Foundation
Ck 12: 2.6 Solving Radical Equations
This section explores the process for solving radical equations, including those with square, third, and fourth roots. It also investigates how, when, and why some solutions that appear to be correct are incorrect, and are therefore...
Interactive Mathematics
Interactive Mathematics: Roots and Radicals
Here you'll find information on radicals: notation, symbols, and laws for simplifying. The information is brief, but easy to follow.
Other
Curious math.com: Math Is an Attitude
This site offers numbers tricks to help multiply and divide large numbers mentally. There are also tricks for powers and roots of numbers.
Wolfram Research
Wolfram Math World: Principal Square Root
MathWorld offers an explanation for the concept of principal square root is found here.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...