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Government of Alberta
Learn Alberta: Math Interactives: Exploring Square Roots (Object Interactive)
Explore a set of perfect squares, as well as their square roots using this highly interactive math resource. In addition, students will get to look at estimates of the square roots of non-perfect squares. Printable activities, solutions,...
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.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Square Roots Video
This video illustrates the concepts of square roots, slope, and the Pythagorean Theorem as they are used in designing and constructing skate park rails, ramps, and pipes. An interactive activity is also included where students are able...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Squares and Square Roots
Get independent practice working with squares and square roots. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Illustrative Mathematics
Illustrative Mathematics: N Cn, a Rei Complex Square Roots
Working with complex numbers allows us to solve equations that cannot be solved with real numbers. Here we will investigate complex numbers which arise as square roots of certain complex numbers. Aligns with N-CN.A.2 and A-REI.A.1.
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.
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.
Khan Academy
Khan Academy: Square Roots of Perfect Squares
Resource provides review and practice of how to find the square root of perfect squares.
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.
University of Cambridge
University of Cambridge: Nrich: Irrational Proof
This site contains a proof that the square roots of all prime numbers are irrational.
Quia
Quia: Square Roots
This interactive matching game allows students to practice identifying the squares and square roots of numbers.
Oswego City School District
Regents Exam Prep Center: Complex Numbers
A wealth of material to help you plan classroom instruction on complex numbers: several lessons that cover the number i, square roots of negative numbers, and operations involving complex numbers; practice activities, some of which...
ClassFlow
Class Flow: Squares and Square Roots
[Free Registration/Login Required] Students complete multi-step computations using order of operations in situations involving combinations of rational numbers including whole number exponents and square roots of square numbers.
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.
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.
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.
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...
Illustrative Mathematics
Illustrative Mathematics: 8.ns Placing a Square Root on the Number Line
This task develops students' number sense of squares and square roots. They are to find an approximation of a less obvious square root of a number to see where it would fall on a number line. To do this, they must examine perfect squares...
Quia
Quia: Square Roots (Concentration Game)
This concentration game explores square roots. There is a link to a list of the numbers being used so students can check their answers.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is Square Root?
Briefly covers the topics of square roots, decimal numbers, and 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...
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.