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.

Conic sections: Hyperbolas 2 | Conic sections | Algebra II | Khan Academy

By Khan Academy

This video lecture series on Algebra from Khan Academy includes Linear Equations, Solving Inequalities, Slope and Y-intercept, Equation of a Line, Averages, Integer sums, Taking Percentages, Systems of Equations, Ratios, Multiplying Expressions, Solving a quadratic by factoring, Imaginary Numbers, Complex Numbers, Quadratic Equations, Quadratic Inequalities, Functions, Conic sections, Circles, Ellipses, Hyperbolas.

9.5 The Distance Formula (Lesson and Practice)

By AutenMath

A lesson on the distance formula

Heron's Formula, Example 1

By PatrickJMT

Heron's Formula, Example 1. Here I use Heron's Formula to find the area of a triangle.

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1

By PatrickJMT

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1. In this video, I use information about the length of the hypotenuse of a right triangle as well as a trig value to find the area of the triangle.

Trigonometry - sine ratio example

By Mr Jamieson Maths

In this video made with 'Explain Everything' an applied example of how to use the sine ratio is shown.

How to? - Trigonometry Cosine Ratio

By skoolm8

Shows you how to use the Cosine Ratio to find and unknown side of a right angle triangle.

Weights and Measures Part II

By Southwest Center for Microsystems Education

This YouTube video, created by Southwest Center for Microsystems Education (SCME), is the second in a series of three videos created to educate viewers about weights and measures in the context of nanofabrication. This segment, which is 17:08 minutes long, covers the seven core units of measurement in the SI universal system . Viewers can learn more about this topic on the SCME website.

Pronoun Lesson for High School

By Time4Writing

This video reviews many different kinds of pronouns. It lists all the personal pronouns and many examples of other types.

Pronoun-Antecdent Agreement

By EnglishI PLC

This instructional video presents pronoun-antecedent agreement. It offers a good review of this topic for high school students

Can you find the English grammar mistakes?

By Espresso English

This video reviews common errors in the usage of Standard English. It addresses such grammatical issues as non-count nouns, phrasal verbs, and comparative modifiers