CK-12 Foundation
Ck 12: Algebra: Use Square Roots to Solve Quadratic Equations
[Free Registration/Login may be required to access all resource tools.] Solve quadratic equations involving perfect squares.
Other
Dan's Math: Basic Skills Topics
College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.
Texas Instruments
Texas Instruments: Estimating Square Roots
By estimating the value of a square root students will get practice in identifying perfect squares, in checking for reasonableness of an answer, and in mental math.
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...
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.
Oswego City School District
Regents Exam Prep Center: Simplifying Square Roots With Negative Numbers
This tutorial and practice shows how to simplify radicals even with a negative number. Features include a teacher page that has a Bingo game to teach the concept.
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.
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: 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.
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 of Perfect Squares
Resource provides review and practice of how to find the square root of perfect squares.
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...
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.
Khan Academy
Khan Academy: Simplify Square Root Expressions
Practice simplifying expressions with multiple radical terms. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
PBS
Pbs Learning Media: Exponents and Radicals: Targeted Math Instruction
This lesson plan focuses on exponents and radicals as they apply to problems involving squares, perfect squares, and square roots.
Discovery Education
Discovery Education: Web Math: Simplify a Term Under a Radical Sign
This site walks you step-by-step through simplifying an expression under a square root sign. Type your problem into the "math solver," and your answer, complete with a full description, is provided.
Discovery Education
Discovery Education: Web Math: Simplify a Term Under a Radical Sign
This site walks you step-by-step through simplifying an expression under a square root sign. Type your problem into the "math solver," and your answer, complete with a full description, is provided.
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.
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...
Shmoop University
Shmoop: Basic Operations: Roots
The mathematics resource explores roots. Students examine the topic through class notes and examples. Practice problems with solutions are available to check for comprehension of the concept.
Khan Academy
Khan Academy: Quadratics by Taking Square Roots
Analyze the process of solving a quadratic equation by taking the square root. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Doina Popovici
Math Play: Square Root Concentration Game
An interactive game where students can sharpen their skills for calculating simple square roots.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rational Numbers and Square Ro
Math Forum response to which numbers, other than squared positive integers, can be simplified as rational numbers.
Other
Algebra Class: Solving and Graphing a Quadratic Equation
Math teacher provides a unit on quadratic equations in which she explains the concepts of solving and graphing quadratic equations through numerous examples and graphs. Hyperlinks are available to each step that ultimately leads to...