Free Educational Videos for Students in K-12

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.


Evaluate composite functions from graphs and tables


By Khan Academy

Sal explains what it means to compose two functions. He gives examples for finding the values of composite functions given the equations, the graphs, or tables of values of the two composed functions.

Find explicit formulas for arithmetic sequences


By Khan Academy

Sal finds explicit formulas of arithmetic sequences given the first few terms of those sequences. He also explores equivalent forms of such formulas.

Empirical rule


By Khan Academy

More Empirical Rule and Z-score practice

Finding area by multiplying


By Khan Academy

Find area of a rectangle with different sized units.

Finding 1 on the number line


By Khan Academy

Graph and locate fractions on a number line.

Identifying factors and multiples


By Khan Academy

To find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example?

Inequalities on a number line


By Khan Academy

Learn how to plot a simple inequality on a number line. The example used in this video is x < 4.

Integer addition and subtraction: find the missing value


By Khan Academy

Sal solves more missing value problems: 4 = -8 - __ ������������and ������������__ - (-2) = -7 ������������and ������������-4 = __ - 9

Integer addition and subtraction


By Khan Academy

Use a number line to add 15 + (-46) + 29

Interpreting linear relationships


By Khan Academy

Sal discusses how we would go about making sense of the direction of a linear graph that represents a relationship between two real-world quantities.