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.
Addition and subtraction
Addition & Subtraction
4th | Online class
Fourth grade is the time to really fine-tune your addition and subtraction skills to the point that you can add and subtract pretty much any multi-digit, whole number!
Addition and subtraction
Addition & Subtraction
1st - 3rd | Online class
In this tutorial, we’ll start adding and subtracting numbers that have two (yes, two!) digits. We won’t be doing any carrying or borrowing (you’ll learn what those are shortly) so you can see that...
Addition and subtraction intro
Addition & Subtraction
Pre-K - 3rd | Online class
When we add, we put together. When we subtract, we take apart. Numbers used are 10 or less.
Addition and subtraction within 100
Addition & Subtraction
Kindergarten - 3rd | Online class
Learn to add and subtract two-digit numbers within 100.
Addition and subtraction within 20
Addition & Subtraction
Kindergarten - 2nd | Online class
All content in “Addition and subtraction within 20”
A developer's guide to the Internet of Things (IoT)
Internet of Things
College | Online class
The Internet of Things (IoT) is an area of rapid growth and opportunity. Technical innovations in networks, sensors and applications, coupled with the advent of ‘smart machines’ have resulted in a...
ADHD: Everyday Strategies for Elementary Students
Mental Health
College | Online class
This course will provide an overview of ADHD diagnosis and treatment. Course participants can expect to learn about ADHD as a developmental disorder that begins early in childhood, and participants...
Advanced Algorithms and Complexity
Algorithms
College | Online class
You’ve learned the basic algorithms now and are ready to step into the area of more complex problems and algorithms to solve them. Advanced algorithms build upon basic ones and use new ideas. We...
Advanced Business Strategy
Business Strategy
College | Online class
Advanced Business Strategy is course 2 of 5 in the Business Strategy Specialization. This Specialization covers both the dynamics and the global aspects of strategic management. With cases drawn...
Advanced Chemistry
Chemistry
High School - College | Online class
A chemistry course to cover selected topics covered in advanced high school chemistry courses, correlating to the standard topics as established by the American Chemical Society. Prerequisites:...
Advanced Competitive Strategy
Business Strategy
College | Online class
Advanced Competitive Strategy will introduce new topics and modules with even more real world examples and opportunities for student interaction than in the previous course Competitive Strategy...
Advanced Content and Social Tactics to Optimize SEO
Search Engine Optimization (SEO)
High School - College | Online class
Understand the content marketing and social media ecosystems and how these interconnected channels drive search results to a website. Learn how to leverage content marketing and social media as...
Advanced Converter Control Techniques
Power Electronics
College | Online class
About this Course This course covers advanced converter control techniques, including averaged-switch modeling and Spice simulations, modeling and design of peak current mode and average current...
Advanced Engineering Systems in Motion: Dynamics of Three Dimensional (3D) Motion
Force & Motion
College | Online class
This course is an advanced study of bodies in motion as applied to engineering systems and structures. We will study the dynamics of rigid bodies in 3D motion. This will consist of both the...
Advanced Instructional Strategies in the Virtual Classroom
Teaching
College | Online class
This course will help you ‘up’ your game and develop the advanced level skills and techniques that elude even some of the most experienced virtual teachers. We will examine the pitfalls beginning...
Advanced Interviewing Techniques
Interviewing
College | Online class
About this Course People interviewing for jobs today often fail because they are using yesterday’s strategies. Recruiting technology has become more sophisticated, and the best employers are...
Advanced JS: Games & Visualizations
JavaScript
High School - College | Online class
Once you’ve taken Intro to JS, go here to learn techniques to help you make multi-scene programs, 3d graphics, button menus, and scored games.
Advanced JS: Natural Simulations
JSP
College | Online class
Once you’ve taken Intro to JS, you can go through this course to learn how to combine JS, ProcessingJS, and mathematical concepts to simulate nature in your programs. This course is a derivative of...
Advanced Linear Models for Data Science 1 : Linear Models
Data Science
College | Online class
Welcome to the Advanced Linear Models for Data Science Class 1: Least Squares. This class is an introduction to least squares from a linear algebraic and mathematical perspective. Before beginning...
Advanced Neurobiology I
Neuroscience
College | Online class
Hello everyone! Welcome to advanced neurobiology! Neuroscience is a wonderful branch of science on how our brain perceives the external world, how our brain thinks, how our brain responds to the...
Advanced Search Engine Optimization Strategies
Search Engine Optimization (SEO)
College | Online class
This course focuses on technical, mobile and social strategies for increasing site traffic. Learn how to build SEO for international audiences through content localization, global team alignment...
Advanced Styling with Responsive Design
Web Design
College | Online class
About this Course It used to be the case that everyone viewed webpages on about the same size screen. But with the explosion of the use of smartphones to access the Internet, the landscape of...
Advanced Writing
Writing & Composition
9th - High School | Online class
Course 3: Advanced Writing This is the third course in the Academic English: Writing specialization. By raising your level of academic writing, this course helps prepare you for college-level work....
Aegean art
Online class
The art of the Cycladic Islands is best known for beautiful and enigmatic figures of varying sizes. Marbles once painted and with a strong abstract quality that attracted the attention of some of...
Africa: 1100-1980 C.E.
9th - High School | Online class
Human life, which is understood to have begun in Africa, developed over millions of years and radiated beyond the continent of Africa. The earliest African art dates to 77,000 years ago. While...
African art, an introduction
Art History
College | Online class
Find here a brief introduction to the peoples and cultures of Africa.
Aggregate demand and aggregate supply
Online class
This tutorial looks at supply and demand in aggregate-from the perspective of the entire economy (not just the market for one good or service). Instead of thinking of quantity of one good, we think...
Agile Development Capstone
Entrepreneurship & Small Business
High School - College | Online class
The Capstone project provides a guided opportunity for you to practice your agile development skills. Using the venture design process that frames the four courses in this Specialization, you will...
Agile Planning for Software Products
Agile Project Management
High School - College | Online class
This course covers the techniques required to break down and map requirements into plans that will ultimately drive software production. Upon successful completion of this course, you will be able...
AIDS: Fear and Hope
Viruses
College | Online class
The basic biology of the virus, HIV, and the disease it causes, AIDS. The economic, social and political factors that determine who gets sick and who remains healthy, who lives and who dies. The...