Free Online Classes
Online classes are a great alternative to classroom instruction these days. They go beyond lecture videos by including online quizzes or tests to verify that students have truly learned the material, and some have scheduled online lectures or group participation. Find the best online courses here for any grade level and virtually any academic subject, many of which are suitable for high school or college level classes. To see just free online classes, set the price filter to zero.
RWM103: Geometry
Geometry
6th - High School | Online class
Unit 1: The Basics of Geometry From a young age, we learn basic vocabulary and basic concepts that lead us to understand greater concepts. In this unit, you will learn about the basic building...
SALES103: Public Speaking for Sales
Public Speaking
College | Online class
Unit 1: Sales Positions Beginning a sales career can be very exciting and offers a wide range of professional possibilities. Diving head first into a list of want ads can be time consuming and may...
SAT
SAT Preparation
High School | Online class
Download and take a real, full-length practice test. Watch videos showing step-by-step solutions to problems you missed or found challenging, and get even more practice with unreleased questions...
SAT Math practice
SAT Math
High School | Online class
In these tutorials, we walk through solving tons of practice problems covering all of the skills you’ll need for the SAT Math sections. The examples are split by difficulty level on the SAT. Then...
SAT Reading and Writing practice
SAT Reading & Writing
High School | Online class
In these tutorials, we walk through SAT Reading and Writing questions, both as passages and in focusing on the specific skills you’ll need. The examples are split by difficulty level on the SAT....
SAT Tips & Planning
SAT Preparation
High School | Online class
Sal walks through using Official SAT Practice on KhanAcademy.org, which we built in partnership with College Board (the creators of the SAT).
Saylor001: Introduction to Learning on Saylor Academy
Online Education
College | Online class
While Saylor Academy courses are free, and much of the course material can be viewed without having to sign in or create an account, we do encourage all of our learners to create an account in...
Saylor101: Saylor Course Development
Online Education
College | Online class
Course Introduction Welcome to Saylor Academy! We’re thrilled that you are going to be applying your teaching and subject matter expertise to our open courses. This brief training course will...
Scale of the universe
Astronomy
7th - College | Online class
The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we...
Scaling Operations: Linking Strategy and Execution
Operations Management
College | Online class
Over the past several decades, operations strategy has played an increasingly important role in business’ success. In this course, we will equip you with concepts and tools to build operations in a...
Scarcity, possibilities, preferences and opportunity cost
Online class
This tutorial goes back to the basics. You are a hunter-gatherer with only so much time to hunt or gather. How do you allocate your time and energy to maximize your happiness? This is what we try...
Scholarly Communication
Communication Science
College | Online class
About this Course Scholarly Communication is a concise but comprehensive course on how to write research papers in English. The course will help the candidates gain a better understanding of the...
Script Writing: Write a Pilot Episode for a TV or Web Series (Project-Centered Course)
Screenwriting
College | Online class
What you’ll achieve: In this project-centered course*, you will design a series bible and write a complete pilot episode for your own unique television or web series, be it drama or comedy or...
Second order linear equations
Online class
To make your life interesting, we’ll now use the word “homogeneous” in a way that is not connected to the way we used the term when talking about first-order equations. As you’ll see, second order...
Securing Digital Democracy
Civics
College | Online class
In this course, you’ll learn what every citizen should know about the security risks—and future potential — of electronic voting and Internet voting. We’ll take a look at the past, present, and...
Securing Investment Returns in the Long Run
Investing
College | Online class
In this course, you will learn about the famous dichotomy between active and passive investing, how to appropriately measure and analyze investment performance and what the future trends in the...
Seeing structure in expressions
Online class
Learn how to evaluate expressions with variables whose values are unknown, by using another information about those variables. For example, given that a+b=3, evaluate 4a+4b.
Seeing the Light, Envisioning the Content, Sharing in Print & Online
Content Strategy
College | Online class
Welcome to Course FOUR! In Modules 1-4 we will cover the final elements of the Specialization necessary to round out this introduction to the fundamentals of Photography, and prepare you for...
Seeing Through Photographs
Photography
7th - College | Online class
Although taking, sharing, and viewing photographs has become second nature for many of us, our regular engagement with images does not necessarily make us visually literate. This course aims to...
Semiconductor devices
Online class
Diode as a circuit element Diodes conduct current in one direction but not the other. We solve a diode circuit graphically by plotting a diode i-v curve and resistor to find the intersection.
Sequences
6th - 9th | Online class
Learn what sequences are, and about the explicit and recursive definitions of sequences. Evaluate sequences that are defined recursively.
Sequences, series, and function approximation
Sequences & Series
9th - College | Online class
Now we switch gears away from integration to talk about sequences and series. Much of calculus is about dealing with infinity, and this topic has us dancing very closely with infinity itself....
Sequences, series and induction
Online class
Sal explains sequences and gives examples of different sequences, defined either explicitly or recursively.
Serious Gaming
Video Game Design
College | Online class
Have you ever wondered how playing games can help us to train people, deal with societal challenges or raise awareness of contemporary social issues? In this MOOC you will learn the ins and outs of...
Server-side Development with NodeJS
Node.js
College | Online class
This course deals with all things server-side. We base the entire course around the NodeJS platform. We start with a brief overview of the Web protocols: HTTP and HTTPS. We examine NodeJS and...
Service Transformed: Lessons in U.S. Veteran Centered Care
Health Services
College | Online class
Improving health care for veterans has become a matter of national attention and has gained increasing attention from the medical community. With the current surge of veterans reintegrating into...
Setting Expectations & Assessing Performance Issues
Management
College | Online class
Setting Expectations & Assessing Performance Issues is course 2 of 5 in the Coaching Skills for Managers Specialization. In this Specialization, you will learn the essential skills to coach...
Shape Your Life With Leadership
LeadershipCollege | Online class
This Specialization will help you switch from a top-down leadership, with the emphasis on authority, to an open leadership based on trust and sense. This new approach of leadership, taught to HEC...
Sharpened Visions: A Poetry Workshop
Poetry
College | Online class
Why just write poems when you can write better ones? This course is built on the notion that the most exciting writing begins after the first draft. It is specifically for folks who believe that...