Best educational videos to complement children’s learning. Instructional and ‘how to’ videos that explain concepts and help build essential skills. Find thousands of Khan academy videos, Lumos Learning videos along with many other interesting resources from top publishers. Recommend helpful videos to colleagues, friends, or students. Share feedback and submit reviews.
Writing Equations of Ellipses In Standard Form and Graphing Ellipses - Conic Sections
By The Organic Chemistry Tutor
This algebra video tutorial explains how to write the equation of an ellipse in standard form as well as how to graph the ellipse when in standard form. It explains how to find the coordinates of the foci, vertices, and co-vertices. This video contains plenty of examples and practice problems.
Area Between Two Curves
By The Organic Chemistry Tutor
This calculus video tutorial provides a basic introduction in finding the area between two curves with respect to y and with respect to x. It explains how to set up the definite integral to calculate the area of the shaded region bounded by the two curves. In order to find the points of intersection, you need to set the two curves equal to each other and solve for x or y. You need to be familiar with some basic integration techniques for this lesson. This video contains plenty of examples and practice problems.
How To Integrate Using U-Substitution
By The Organic Chemistry Tutor
This calculus video tutorial provides a basic introduction into u-substitution. It explains how to integrate using u-substitution. You need to determine which part of the function to set equal to the u variable and you to find the derivative of u to get du and solve for dx. After replacing all x variables with u variables, find the antiderivative of f(u) and substitute u in the new function with x variables. This video contains plenty of examples and practice problems of finding the indefinite integral using u-substitution. Examples include polynomial functions, trigonometric functions, exponential functions, square root functions, and rational functions.
Conservation of Energy Physics Problems
By The Organic Chemistry Tutor
This physics video tutorial explains how to solve conservation of energy problems with friction, inclined planes and springs.
Multiplying: 2 digits times 1 digit (with carrying) | Arithmetic | Khan Academy
By Khan Academy
We use something called the standard method which involves writing the larger of the two numbers on top. Watch.
Two-step equations
By Khan Academy
Let's practice some two step equations, some of which require merging terms and using the distributive property.