Khan Academy

Khan Academy is a non-profit educational organization that provides free online courses, lessons, and practice exercises. It covers subjects from early learning through college level, including math, science, computer programming, history, art history, economics, and more.

• Completely free access to all content
• Personalized learning dashboard
• Practice exercises with instant feedback
• Video lessons and explanations
• Progress tracking and achievements
• Mastery-based learning approach
• Teacher and parent tools
• Offline access through mobile apps

• K-12 education supplementation
• Homeschooling curriculum support
• Adult learner skill refresh
• Test preparation (SAT, GMAT, etc.)
• Teacher classroom resources
• Parent education support
• Math and science tutoring
• Computer programming introduction

• Coursera
• edX
• Codecademy
• Brilliant