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
Zeroes of Polynomials
Zero in to find the correct answer. Scholars find out how to solve a polynomial equation by factoring to find the zeroes. Learners use their knowledge of factoring polynomials and solving linear equations to find all of the solutions and...
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 =...
Flipped Math
The Quadratic Formula
It just takes one formula to solve them all. By watching a video, pupils learn to solve quadratic equations using the quadratic formula. Some equations require rewriting the equations in standard form before identifying the values of a,...
Flipped Math
Solve Quadratic Equations Using Square Roots
Not having an x term makes things so much easier. The second of five installments in Algebra I Unit 11 focuses on solving quadratic equations by taking square roots. Scholars learn to solve equations of the form ax^2 + c = d by watching...
Calculus Expert
Use the Quadratic Formula to Find Roots of the Function
Get to the root of the problem with an instructive lesson! Learners find the roots of a function using the quadratic formula. A video shows the process and includes an explanation of the substitution steps.
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...
Khan Academy
Khan Academy: Algebra Ii: Recognizing a Perfect Square Quadratic
Demonstrates how to solve a quadratic equation by factoring where the first step is to set the equation equal to zero. The quadratic polynomial in the example is a perfect square trinomial. [3:19]
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: Quadratic Formula 3
Explains how to determine the number of solutions a quadratic equation has based on the value of the discriminant. [4:59]
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: Solving a Quadratic by Factoring
Video demonstrates how to solve quadratic equations by factoring. Three example problems are solved and the connection is shown between the solution and graph of an equation. [9:12]
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 Square Roots
Video shows how to solve a quadratics in a certain form by isolating the squared term and taking the square root of both sides. Examples help lead into solving quadratics by completing the square. [11:03]
Khan Academy
Khan Academy: Algebra: Introduction to the Quadratic Equation
Explains how to solve quadratic equations, or find the roots of the equation, by factoring and by using the quadratic formula. Three different equations are solved. [9:14]
Virtual Nerd
Virtual Nerd: Solving Quadratic Equations by Inspection, Taking Square Roots
Pick from a variety of tutorials to teach how to solve quadratic equations using various methods.