A free world-class education for anyone anywhere. The Khan Academy is an organization on a mission. They are non-profit organization with the goal of changing education for the better by providing a free world-class education to anyone anywhere. The Khan Academy's materials and resources are available to you completely free of charge.
Free World U
Free World U is a 501(c)3 nonprofit online school offering its students a complete preschool through 12th grade curriculum. Their proven program is supported by research that shows that children can learn faster and enjoy learning more with their methods. The curriculum is taught via flashcards that break subjects down into small, easily assimilated fact units. The flashcards are presented through a program that remembers what each student has learned and what he or she needs to keep working on. There is no charge for using their program who wish to use it. In addition, Free World U's accredited school, with low monthly tuition, adds exams, progress reports, transcripts, certificates of completion, diplomas and other features to their flashcard program.
National Geographic Kids
The site is great for younger students. The site contains a large variety of games, puzzles, videos and photos that keeps kids returning for more.
Fun Brain is another good option for kids who want to learn online, but focuses on reading and math puzzles. Fun Brain’s game based approach can be valuable if the child in question struggles to pay attention. Fun Brain offers rewards and challenges and is geared to kids kindergarten through eighth grade.
BrainNook contains over a hundred educational games based on important concepts in the critical foundational subjects of Math and English Grammar. Children play these games while exploring colorful virtual worlds, safely competing and interacting with other children, and solving puzzles. Free users can access many areas of BrainNook, including some worlds and games. Parents of free users can also use the Parent Report Center to keep track of their child's progress in BrainNook.
The site is full of educational videos. Most of the videos are ten minutes in length or less. TED-Ed includes supplemental materials and quizzes on the videos. The site is great for learning about new topics or reviewing old material.