CK-12 Foundation
Ck 12: Algebra: Evaluation of Square Roots
[Free Registration/Login may be required to access all resource tools.] Evaluate square roots
CK-12 Foundation
Ck 12: Algebra: Evaluation of Perfect Square Roots
[Free Registration/Login may be required to access all resource tools.] Recognize and evaluate perfect square roots
Khan Academy
Khan Academy: Simplify Square Roots (Variables)
Simplify square roots that contain variables in them like square root of 27a. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Approximating Square Roots
Practice finding the approximate value of square roots by thinking about perfect squares. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Planet
Math Planet: Pre Algebra: Square Roots and Real Numbers
Provides an explanation, examples, and a video lesson all related to square roots and real numbers. [1:59]
Khan Academy
Khan Academy: Simplify Roots of Negative Numbers
Rewrite square roots of negative numbers as imaginary numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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.
Illustrative Mathematics
Illustrative Mathematics: A Rei Radical Equations
The purpose of the task is to show students a situation where squaring both sides of an equation can result in an equation with more solutions than the original one, because it is possible to have two unequal numbers whose squares are...
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.
Shodor Education Foundation
Shodor: Using Your Calculator
This site deals with using a calculator to help solve and evaluate mathematical problems. This site provides a lengthy chart of basic operations performed by calculators, examples of problems to be solved using a calculator, as well as...
Math Planet
Math Planet: Algebra 1: Radical Expressions: The Graph of a Radical Function
Provides detailed information about the graph of a radical function through the use of examples and a brief video lesson. [2:10]
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,...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Square Roots
Find a quick, concise explanation of square roots. An example is given and clearly explained.
CK-12 Foundation
Ck 12: Algebra: Square Roots and Irrational Numbers
[Free Registration/Login may be required to access all resource tools.] Find the principal square root of numbers and simplify square root problems.
Math Warehouse
Math Warehouse: Square Root Calculator and Solver
Students can type any positive or negative number into the square root calculator. The calculator reduces the square root to its simplest radical form.
Khan Academy
Khan Academy: Equations With Square Roots and Cube Roots
Practice solving equations by squaring or cubing both sides. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Algebra: Square Roots and Irrational Numbers
[Free Registration/Login may be required to access all resource tools.] Learn how to find square roots and identify irrational numbers.
Khan Academy
Khan Academy: Square Roots
In this exercise, students practice finding the square roots of perfect squares. Students receive immediate feedback and have the opportunity to get hints, watch a video, and try questions repeatedly.
Khan Academy
Khan Academy: Square and Cube Challenge
Practice solving problems using your knowledge of square and cube roots. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Algebra: Nth Roots
[Free Registration/Login may be required to access all resource tools.] This lesson introduces and teaches how to evaluate nth roots. Students examine guided notes, review guided practice and attempt practice problems.
Texas Instruments
Texas Instruments: Knowing About Numbers
Students experience square roots, perfect squares, and absolute value to enhance their knowledge of numbers. Taking this awareness, students apply it to operations with integers.
Khan Academy
Khan Academy: Roots of Decimals and Fractions
In this exercise, students practice finding the roots of decimals and fractions. Students receive immediate feedback and have the opportunity to get hints, watch a video, and try questions repeatedly.
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...
Cuemath
Cuemath: Complex Numbers
A comprehensive guide for learning all about complex numbers with definitions, operations on complex numbers, solved examples, and practice questions.