National Education Association
Rates and Proportions
Clarify complex math concepts with a helpful video. Learners view ways to work with ratios and proportions while discussing vocabulary and notation. After solving proportions, they apply the new strategy to word problems.
National Education Association
Interpret the Rate of Change/Slope and Intercepts within the Context of Everyday Life
Rates of change can be a slippery slope. The resource makes the connection between the rate of change and the slope of a line. It continues on to provide examples of how to interpret the slope and the y-intercepts of linear equations...
MinutePhysics
Why Are Airplane Engines So Big?
Why is the size of jet engines increasing? An entertaining video lesson describes the efficiency of jet engines. The narrator describes the poor design of an engine that is too small or too big and explains why it is more efficient to...
TED-Ed
How Did Polynesian Wayfinders Navigate the Pacific Ocean?
Imagine sailing around the world, or even around the Pacific Ocean, in an outrigger canoe without the the aid of a GPS? Or a compass? Or even a sextant? The Polynesians did. Find out how with an engaging video that details how they used...
Khan Academy
Proof of Quadratic Formula
Armed with their newfound (or refreshed) knowledge of the quadratic formula, viewers can now work with Sal to prove the formula - an important skill that is often ignored in algebra. Once they learn how to both use and prove the...
Khan Academy
Solving a Quadratic by Factoring
Solving quadratics by factoring is the main concept in this video. Several examples are shown with positive numbers and with negative numbers. The instructor demonstrates how to set the factored equation to zero to solve the quadratic....
Curated OER
Quadratic Equation Part 2
The instructor continues solving quadratic equations by plugging values into the quadratic formula. These examples are a bit more difficult because the answers do not work out to whole numbers.
FuseSchool
Quadratic Graph—Roots and Y-Intercept
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...
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...
Brightstorm
Dilations of Quadratic Graphs
Challenge: Sketch a graph of a quadratic function without making a table of values. High schoolers learn how different parameters affect the graph of a quadratic function. The problem video focuses on dilations of quadratic graphs.
Brightstorm
Computing Difference Quotients - Concept
Taking precalculus will make finding tangents secant nature! Many people are confused by using difference quotients with limits in a derivative, and these videos help break it into smaller pieces. Leaving out the derivative and the...
Curated OER
Solving Rational Equations
Continue your lecture on radical equations with this video, which features Sal solving a few more problems with his classic clarity and understandable way. Young mathematicians will benefit immensely from seeing his cool hand guide the...
Mathed Up!
Symmetry
Eleven problems provide pupils the opportunity to find the lines of symmetry or identify rotational symmetry. Scholars alter designs to make them symmetrical, learn to recognize signs that are symmetrical, and identify the type of...