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Designed to work as a free homeschool and organized according to traditional curriculum standards, providing video lectures, courses, documentaries, books, quizzes, lecture notes and much more.
Cambridge University Press has been publishing dictionaries for learners of English since 1995. Cambridge Dictionaries Online has been offering these dictionaries completely free of charge since 1999.
More than 100 trusted sources, including encyclopedias, dictionaries, and thesauruses with facts, definitions, biographies, synonyms, pronunciation keys, word origins, and abbreviations.
We’re the destination educators, students, parents and administrators choose when looking for free quality education content. If it’s for the classroom, it’s right here!
Award-winning source of credible, unbiased, and easy-to-understand explanations of how the world actually works.
We're a not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere.
For more than 150 years, in print and now online, Merriam-Webster has been America's leading and most-trusted provider of language information.
A massive central data source and a handy way to graphically compare nations. using data from such sources as the CIA World Factbook, UN, and OECD.
Thousands of resources covering everything from string theory to the evolution of flight to how the Pyramids were built.
Learn how you can tap into America’s #1 Educational Media Brand for access to thousands of innovative, standards-aligned digital resources, compelling student experiences, and professional development opportunities.
Welcome to sites by Phillip Martin!
We design educational software and online games.
The free encyclopedia that anyone can edit.
Free Biology Microsoft PowerPoint presentations.