With his trusty graphing calculator, Sal begins his lecture on solving quadratic functions by graphing. The video is a good way to show young mathematicians not only how to use the graphing calculator (which Sal describes as "archaic"...

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...

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 =...

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,...

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...

Get ready to set the standard! Pupils watch a video on how to graph a parabola from a quadratic in standard form without converting the form. Scholars learn how to find the axis of symmetry from the equation and from there the vertex....

It looks different, but yet the same. Scholars view a video that introduces them to the vertex form for a quadratic equation. Pupils realize that though the equation looks different, its graph is still a parabola, and the key features...

Attain new heights in understanding quadratics. An educational video explores how to evaluate quadratic equations to solve problems in context. It also looks at how to factor quadratics. The equation gives the height of debris over time...

Don't be bored to death when learning about quadratics. Using a given quadratic equation representing the number of deaths per year per thousand people in terms of age, scholars determine the number of deaths for a particular age group....

By watching an informative video, young mathematicians learn how to write an equation from a table. In this case, the underlying equation is no longer linear, but rather it is quadratic.

Sketch the graph of quadratic functions using key features as a guide. After a brief discussion about the key features of a parabola, the video instructor completes several examples showing how to graph a quadratic function. Each...

Use an understanding of equality to find solutions of quadratics graphically. A well-designed lesson illustrates the relationship between the right and left sides of an equation graphically. With one side quadratic and the other side...

One of the many methods of solving quadratic equations is graphing. A video lesson first demonstrates graphing a quadratic function using an input-output table. After graphing the parabola, the instructor makes the connection between the...

Formulas don't appear from thin air! Learn how to derive the quadratic formula by completing the square. As the video instructor demonstrates each step of the derivation, the quadratic formula begins to emerge until it is complete in the...

When all else fails, use the quadratic formula! A video lesson introduces the quadratic formula to scholars and then demonstrates two problems. One problem results in integer solutions, the other in irrational solutions.

Map the input to the output and see what pupils create. The video lesson provides an introduction to graphing quadratic functions using an input-output table. The instructor shows each step of the calculations when evaluating the function.

Factor quadratics in just a few easy steps. A short video shows how to factor quadratic expressions with a leading coefficient that does not equal one. The process here is to find factors of ac and then factor by grouping.

Build a connection between the equation and graph of a quadratic function. A thorough video lesson demonstrates how to use find the roots and y-intercept of a quadratic function and create a graph from the three points. The instructor...

How does a quadratic function create its shape? Scholars examine the graphs of quadratic functions in an informative video lesson. By creating a table of values, learners see the patterns in the numbers that appear in the graph.

Simply defined, algebra is arithmetic involving an unknown. The video introduces algebra by making the connection to arithmetic. Using examples, the presentation explains the use of variables and notation. The resource previews graphing...

Examine the process of solving linear-quadratic systems of equations with a video tutorial that leads individuals through the steps to solving these systems through substitution. The example shown results in two valid solutions.

The isosceles triangle comes with its own set of properties. A lecturer shows how to apply the Isosceles Triangle Theorem to find missing side lengths or angle measures. The final example involves both square roots and quadratic...

How much leather is needed to make a basketball? Prepare individuals to answer questions like these by watching a video lesson. The instructor in the video completes three examples that use the surface area of spheres formula. 

Strike a chord with your classes! Use the video to demonstrate the relationship between intersecting chords in a circle. The instructor includes an example that involves a quadratic equation and extraneous solution.