Curated OER
Simplifying Square Roots
Discuss the definition for a simplified form for a square root. Middle schoolers analyze different forms of a square root, the Product Property of Square Roots, and complete a worksheet.
Oswego City School District
Regents Exam Prep Center: Millionaire Radicals
In a format like TV's "Who Wants to Be a Millionaire," students answer math questions about radicals to earn points and help their group win the game. Teachers need to create their own question bank, which allows this game to be used for...
Other
How to Calculate Square Roots
Information on square roots in radical equations, along with information on the principal square root.
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.
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.
Quia
Quia: Square Roots
This interactive matching game allows students to practice identifying the squares and square 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.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Why the Principal Square Root Is Positive
At this site from Ask Dr. Math at the Drexel University, Dr. Math responds to an inquiry about why the principal square root is positive.