Math Medics
S.o.s. Math: Algebra
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...
Math Open Reference
Math Open Reference: Root (Of a Number)
Learn how to find the root of a number. Topics covered include two roots, roots of negative numbers, and imaginary numbers. This site offers descriptions along with multiple examples.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Square Roots and Irrational Numbers
Math Forum response to whether square roots of all non-perfect squares are irrational. Contains a proof showing that such cases are, indeed, irrational.
PBS
Pbs: Approximating Square Roots of Nonperfect Squares
Visualize a strategy for approximating the square roots of nonperfect squares through modeling. This video focuses on a ratio, the number of extra tiles over the number of tiles for the next square that will give you a fractional...
CK-12 Foundation
Ck 12: Algebra: Estimation of Square Roots
[Free Registration/Login may be required to access all resource tools.] Approximate square roots to the nearest given decimal place
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
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 Square Roots
[Free Registration/Login may be required to access all resource tools.] Evaluate square roots
CK-12 Foundation
Ck 12: Algebra: Equations With Square Roots
[Free Registration/Login may be required to access all resource tools.] Solve equations using 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.
Quia
Ixl Learning: Square Roots
Brush up on your math skills relating to square roots then try some practice problems to test your understanding.
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.
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.
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.
Khan Academy
Khan Academy: Simplify Roots of Negative Numbers
Rewrite square roots of negative numbers as imaginary numbers.
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...
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.
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.
Khan Academy
Khan Academy: Square Roots of Perfect Squares
Learn how to find square roots of perfect squares in this article. Also included are questions to test student's knowledge of the topic.
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.
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: 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.