Instructional Video5:20
TED-Ed

Can You Solve the Giant Cat Army Riddle?

8th - 12th
Dr. Schrodinger, the rat, has set a trap for anyone trying to destroy the growth ray he is using to create giant cats to attack the city. Viewers are challenged to escape his trap and save humanity in this rather complex math riddle.
Instructional Video3:03
Domain of Science

Why Is It Called a Square Root?

7th - 10th Standards
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...
Instructional Video4:15
Curated OER

What is the Product Property of Square Roots?

8th - 11th
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...
Instructional Video2:04
Curated OER

What's a Perfect Square?

8th - 9th
What makes an integer a perfect square? Want to know the answer? Do the numbers 4, 9, 16, 25, and 36 mean anything? Is the light bulb glowing bright? Yes, anytime you square an integer, the value is a perfect square. That makes sense!
Instructional Video3:12
Curated OER

How Do You Simplify Radicals Using the Product Property?

6th - 9th
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...
Instructional Video2:26
Curated OER

How Do You Know if You Have a Difference of Squares?

8th - 11th
What are the characteristics of a polynomial that would make it factorable by the difference of squares rule? There are four must haves: two terms, coefficients are perfect squares, minus sign, degree of each term is even or zero. If it...
Instructional Video2:10
Curated OER

How Do You Find the Square Root of a Fraction?

6th - 9th
The instructor demonstrates how to find the square root of a fraction. She simply explains that you separate the numerator and denominator, meaning you find the square root of the numerator, and then you find the square root of the...
Instructional Video2:20
Curated OER

How Do You Square a Number?

5th - 8th
Multiply a number by itself and that is squaring a number. Simple as that, and, if it's an integer you have a perfect square.
Instructional Video4:50
Curated OER

What is the Product Property of Square Roots?

6th - 12th
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...
Instructional Video10:20
Curated OER

How was the Quadratic Formula Derived?

6th - 12th
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...
Instructional Video5:49
Curated OER

How Do You Solve a Quadratic Equation by Completing the Square?

6th - 12th
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,...
Instructional Video3:03
Curated OER

How Do You Square a Number?

6th - 12th
Multiply a number by itself and that is squaring a number. Simple as that, and, if it's an integer you have a perfect square.
Instructional Video2:45
Curated OER

How Do You Find the Square Root of a Fraction?

6th - 12th
The instructor demonstrates how to find the square root of a fraction. She simply explains that you separate the numerator and denominator, meaning you find the square root of the numerator, and then you find the square root of the...
Instructional Video1:59
Curated OER

How Do You Find the Square Root of a Perfect Square?

6th - 9th
What is the relationship between squaring a number and taking the square root of a number? The instructor in the video explains the relationship of perfect square and its square root integer.
Instructional Video4:45
Curated OER

How Do You Factor a Polynomial Using Difference of Squares?

8th - 10th
Do you have a perfect square binomial? Don't know, not sure, what is a perfect square binomial? The instructor takes you through many steps to see if this given binomial is a perfect square. It is, and she shows you how to factor it.
Instructional Video8:54
Curated OER

How Do You Solve a Quadratic Equation with Complex Solutions by Completing the Square?

8th - 11th
The quadratic equation x2,3,4x + 5 = 0 is solved by completing the square in this video. Two complex solutions are found and are checked in the original equation to verify that they are solutions.
Instructional Video1:46
Curated OER

What's the Formula for the Square of a Sum?

8th - 9th
The teacher uses the FOIL method to multiply out the square of a sum to prove the equation.
Instructional Video1:52
Curated OER

What's the Formula for the Square of a Difference?

8th - 9th
The teacher uses the FOIL method to multiply out the square of a difference to prove the equation.
Instructional Video5:48
Curated OER

How Do You Subtract Radicals with Unlike Radicands?

8th - 11th
Radicals , radicands , square roots, perfect squares, and subtracting? Sounds complicated, especially because the radicals are not the same in this problem. So, there's a lot of math work to do here. Watch this video to find out how to...
Instructional Video5:13
Curated OER

How Do You Solve a Quadratic Equation by Completing the Square?

8th - 11th
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,...
Instructional Video8:10
Curated OER

How Do You Use a Shortcut to Factor a Perfect Square Trinomial?

8th - 10th
It's not really a shortcut but an equivalent equation. That's how these two perfect square equations work. So when you see an expression written out and it fits the perfect square of a trinomial criteria it can be rewritten in the...
Instructional Video5:21
Curated OER

How Do You Factor a Polynomial Using Difference of Squares?

6th - 12th
Do you have a perfect square binomial? Don't know, not sure, what is a perfect square binomial? The instructor takes you through many steps to see if this given binomial is a perfect square. It is, and she shows you how to factor it.
Instructional Video8:46
Curated OER

How Do You Use a Shortcut to Factor a Perfect Square Trinomial?

6th - 12th
It's not really a shortcut but an equivalent equation. That's how these two perfect square equations work. So when you see an expression written out and it fits the perfect square of a trinomial criteria it can be rewritten in the...
Instructional Video
Sophia Learning

Sophia: Simplifying Radicals With Perfect Squares: Lesson 2

9th - 10th
This lesson will demonstrate how to simplify radicals by using perfect squares. It is 2 of 6 in the series titled "Simplifying Radicals with Perfect Squares."