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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...
Doina Popovici
Math Play: Square Roots Millionaire Game
Show off your knowledge of radicals with this online game. Game requires students to add, subtract, multiply, divide, simplify, estimate, and graph expressions with radicals.
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.
Illustrative Mathematics
Illustrative Mathematics: N cn.c.7 and a rei.b.4.a: Completing the Square
The goal of this task is to solve quadratic equations with complex roots by completing the square. Aligns with N-CN.C.7 and A-REI.B.4.aI.
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.
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: 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.
ClassFlow
Class Flow: Exponents & Roots
[Free Registration/Login Required] This flipchart provides an explanation of exponents and roots.
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.
Texas Instruments
Texas Instruments: Transforming Functions
Explore transformations on an absolute value graph. Apply what you learn to Square root and x-squared equations.
Alabama Learning Exchange
Alex: What's My Number
In this lesson, eighth grade young scholars will learn the steps necessary to approximate the square roots of numbers that are not perfect squares. Students will use a number line as a visual aid to complete this task.
University of Cambridge
University of Cambridge: Nrich: Irrational Proof
This site contains a proof that the square roots of all prime numbers are irrational.
Illustrative Mathematics
Illustrative Mathematics: A Sse Quadrupling Leads to Halving
This question provides students with an opportunity to see expressions as constructed out of a sequence of operations: first taking the square root of a denominator, then dividing the result of that operation into the numerator. Aligns...
Fun Brain
Fun Brain: Tic Tac Toe Squares (Math Facts Games)
Players practice adding, subtracting, multiplying, and dividing skills while playing virtual Tic Tac Toe. They can also try their hand at squares, cubes, and square roots.
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.
Texas Instruments
Texas Instruments: Walking the Fence Line
In this activity, students use the Geoboard to determine the perimeter of polygons. They learn to picture square roots visually as the side length of a square.
Oswego City School District
Regents Exam Prep Center: Simplifying Radicals
Use this site to learn how to simplify radicals, even when the radical is not a perfect square. These examples will be a guide to you in simplifying all kinds of radicals.
CK-12 Foundation
Ck 12: Trigonometry: Trigonometric Equations Using Factoring
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving trigonometric equations using factoring, square roots, and the quadratic formula.
CK-12 Foundation
Ck 12: Algebra: Multiplication and Division of Radicals
[Free Registration/Login may be required to access all resource tools.] In this lesson student learn about dividing square roots. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...
Cool Math
Coolmath: Solving Quadratics Recap
This CoolMath resource reviews the ways to solve quadratic equations: factoring, finding square roots, and using the quadratic formula.
Interactive Mathematics
Interactive Mathematics: Roots and Radicals
Here you'll find information on radicals: notation, symbols, and laws for simplifying. The information is brief, but easy to follow.
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...
ClassFlow
Class Flow: Solve by Completing the Square
[Free Registration/Login Required] This flipchart explores the steps for solving quadratics by completing the square.
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