Domain of Science
Why Is It Called a Square Root?
Take a radical look at square roots. The presentation examines square roots as the lengths of the sides of a square with a given area on the coordinate plane. Using this method, it is clear why the square root of a number can be positive...
FuseSchool
Rationalising the Denominator
Take the next step in simplifying radical expressions. The video shows how to rationalize the denominator that contains square roots. Examples contain simple radicals and ones that require using conjugates.
Math Antics
Exponents in Algebra
The rules still hold. By reviewing the meaning of exponents in arithmetic, the video takes a look at exponents in algebra. The resource develops the meaning of any number raised to the zero power. Taking the idea of exponents further,...
MinutePhysics
Computer Color is Broken
Is your smartphone really doing its best work when it comes to color? The narrator describes technology's lazy approach to recreating colors in an insightful video. Science scholars discover how digital cameras store...
Mathed Up!
Using a Calculator
Here's a video that presents several numerical expressions to be evaluated using a calculator.Viewers come to realize that sometimes it is not just a matter of punching in the numbers, but they also need to be concerned about how...
Krista King Math
Finding Perimeter Using the Pythagorean Theorem
What would right triangles be without the Pythagorean Theorem? Here learners see how to apply the Pythagorean Theorem to finding missing sides of triangles. The examples include both right and non-right triangles.
Brightstorm
Simplifying Radical Expressions - Concept
Radical, dude! The resource provides an explanation on how to simplify radical expressions. It makes clear that radical expressions are ones that are strictly numerical but also are algebraic expressions. One of the problem sets...
Welch Labs
Imaginary Numbers Are Real (Part 3: Cardan's Problem)
Were complex numbers discovered or invented? A video presentation makes the case for the discovery of square roots of negative one. In order for complex numbers to be real, then they must behave like other numbers, which they do in terms...
Curated OER
What is the Quotient Property of Square Roots?
Before defining the quotient property of square roots, the teacher in this video works through an example that shows how the property is possible. She then goes through a couple more examples of the property in action. Show this resource...
Curated OER
What is the Product Property of Square Roots?
If your class has a grasp of square roots, but is having difficulty with the product property of square roots, this video might be for you! In the video, an instructor completes a short proof of the property, defines the property, and...
Curated OER
How Do You Simplify Radicals Using the Product Property?
It would be difficult to explain how to write the given radical , the square root of 60, in its simplest form. It's not a perfect square so there are several steps required to break it down and get it to its simplest form. Just watch...
Curated OER
How Do You Add Radicals With Like Radicands?
Combine the given radical expressions. How? Do they have the same radical? Yes. Then they can be combined. Watch this video as the teacher explains how to combine the terms that can be combined and leave the terms as they are that need...
Curated OER
How Do You Find Excluded Values?
Teach excluded values with this video. Using a real example, a lecturer breaks down how to find the excluded values of a rational expression. She defines what an excluded value is and completes the problem, explaining each step along the...
Curated OER
How Do You Rationalize a Denominator?
This tutorial video will show you how to get rid of that radical in the denominator and rationalize your fraction! Great for in-class or at-home use, this video could be used to supplement a lesson or clarify radicals, rationalizing, and...
Curated OER
What Is the Distance Formula?
Find the distance between two points on a coordinate plane. How is that done? Let's take a look at the distance formula. What's the distance formula? Well, it's a form of the Pythagorean Theorem. How? Watch the instructor diagram and...
Curated OER
How Do You Estimate the Square Root of a Non-Perfect Square?
Find the square root of a number that is not a perfect square, without using a calculator. In this video, the instructor will show how to estimate to get the approximate value of the square root of a number that is not a perfect square....
Curated OER
What is the Product Property of Square Roots?
If your class has a grasp of square roots, but is having difficulty with the product property of square roots, this video might be for you! In the video, an instructor completes a short proof of the property, defines the property, and...
Curated OER
What is the Quotient Property of Square Roots?
Before defining the quotient property of square roots, the teacher in this video works through an example that shows how the property is possible. She then goes through a couple more examples of the property in action. Show this resource...
Curated OER
What is the Quadratic Formula?
What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...
Curated OER
How was the Quadratic Formula Derived?
If you or your class members are interested in how the quadratic formula is derived, then take a look at this video! The tutorial takes you through each step necessary to derive the quadratic formula from the general form for a quadratic...
Curated OER
How Do You Solve a Quadratic Equation by Completing the Square?
Completing the square is an effective way to solve a quadratic equation. Introduce your class to this technique and use this video to complement your lesson. This resource takes viewers through the process of completing the square,...
Curated OER
How Do You Rationalize a Denominator?
This tutorial video will show you how to get rid of that radical in the denominator and rationalize your fraction! Great for in-class or at-home use, this video could be used to supplement a lesson or clarify radicals, rationalizing, and...
Virtual Nerd
How Was the Distance Formula Derived?
Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...
Curated OER
How Do You Divide Two Rational Expressions?
An instructor walks viewers through a complicated problem in which she divides 2 rational expressions. For this problem, she has to find excluded values, use the zero product property, multiply, divide, cancel, and simplify. This video...