PBS
Career Connections | Pipefitting and Plumbing
Getting water to the drinking fountain and getting waste out of a building are just two jobs for pipefitters and plumbers. A short video details the education and training involved in this rewarding, hands-on career.
Flipped Math
Quadratic Formula
The quadratic formula is what works—always. Instruct your classes on the application of the quadratic formula using a thorough video lesson followed by provided practice problems. The lesson connects algebraic solutions to graphical...
Flipped Math
Complex Numbers
Simplify the complex with a thorough video lesson. Individuals view a lesson on complex numbers and then use a provided set of practice problems to show what they've learned. The lesson includes instruction on using the four basic...
Flipped Math
Imaginary Numbers
Leave nothing to the imagination! Learners view a thorough lesson on imaginary numbers that introduces the concept, shows how to simplify square roots of negative numbers, and then how to solve quadratic equations with imaginary...
Flipped Math
Completing the Square
No unit on quadratics is complete without completing the square. The fourth of five videos in Algebra I Unit 11 first reviews perfect squares and perfect square trinomials. Viewers learn how to rewrite quadratic equations in (x - p)^2 =...
Northeast Arkansas Education Cooperative
Quadratic Formula
The mechanics of using the quadratic formula are clearly detailed in this example-full presentation, along with how to identify and walk through the algorithm. Step-by-step attack methods are provided with examples of several different...
Corbett Maths
Completing the Square
Now your lesson will be complete. Scholars first review the process of completing the square to rewrite quadratics in vertex form. The method shown here is to first take half of the coefficient of x and finding the perfect square, then...
FuseSchool
Completing the Square—Quadratics
What happens when factoring fails? Viewers learn how to rewrite quadratics that cannot be factored. They learn to complete the square to write quadratic in vertex form.
FuseSchool
Completing the Square—Part 2
Add another method to your arsenal by solving quadratics using completing the square. Scholars learn to solve quadratic equations that cannot be solved by factoring. The preferred method for this video is completing the square.
Khan Academy
Khan Academy: Algebra: Completing the Square for Quadratic Equations
Demonstrates how to complete the square for the general form of a quadratic equation, ax^2 + bx + c = 0, which results in the quadratic formula. [9:31]
Khan Academy
Khan Academy: Algebra: Completing the Square
Demonstrates how to solve two different quadratic equations by completing the square. Practice problems available. [13:45]
Khan Academy
Khan Academy: Algebra: Completing the Square 1
Demonstrates how to use the completing the square method to identify a constant value for a given trinomial to create a perfect square trinomial. Practice problems available. [3:22]
Khan Academy
Khan Academy: Algebra: Quadratic Formula 2
Demonstrates how to solve a quadratic equation that begins in the form ax^2 + bx = c using the quadratic formula. [6:40]
Khan Academy
Khan Academy: Algebra: Quadratic Formula 1
Demonstrates how to use the quadratic formula to solve a quadratic equation with a negative leading coefficient. [5:34]
Khan Academy
Khan Academy: Algebra: Quadratic Formula (Proof)
Explains how to derive the quadratic formula by completing the square on the standard form of a quadratic equation. [7:34]
Khan Academy
Khan Academy: Algebra: Proof of Quadratic Formula
Demonstrates how to derive the quadratic formula from the standard form of a quadratic equation by completing the square. This video also appears in the Algebra: ck12.org strand. [7:44]
Khan Academy
Khan Academy: Algebra: Ca Algebra I: Quadratic Equation
Demonstrates solutions to problems #53-57 of California Algebra I released state test questions. Problems address an understanding of solving quadratic equations by completing the square and the quadratic formula. [10:14]
Khan Academy
Khan Academy: Algebra: Discriminant of Quadratic Equations
Identifies the quadratic formula and discusses what the values of the discriminant indicate about the number and types of solutions for a given quadratic equation. This video also appears in the Algebra: ck12.org strand. [10:14]
Khan Academy
Khan Academy: Algebra: Quadratic Equations in Standard Form
Identifies the standard form of a quadratic equation and models how to put a given quadratic equation into standard form, ax^2 + bx + c = 0, and identify the values of a, b, and c. [2:21]
Khan Academy
Khan Academy: Algebra: Quadratic Equation Part 2
Explains how to use the quadratic formula to find the solutions to a quadratic equation. Two different examples are solved. [9:14]
Khan Academy
Khan Academy: Algebra: Applying the Quadratic Formula
Demonstrates how to find the solutions of a given quadratic equation with a negative leading coefficient using the quadratic formula. [4:51]
Khan Academy
Khan Academy: Algebra: Solving Quadratic Equations by Completing the Square
Explains how to solve two different quadratic equations using the completing the square method. [14:06]
Virtual Nerd
Virtual Nerd: Convert a Quadratic Equation From Vertex Form to Standard Form
If you want to solve a quadratic equation that's in vertex form, it's easier to first convert the equation to standard form. This tutorial will show you how. [4:15]