Compartilhe seus pensamentos...
Medíocre
Razoável
Mediano
Bom
Excelente
3 Avaliações da comunidade
Ordenar por:
Recentes
há 2 anos
Helpful
t
há 9 anos
This site, which offers free educational materials, many of which are used for MOOCs, is well organised and a boon for the self learner. You can download books or even make up your own text book, plus there is a growing wealth of other learning aides and links to similar sites.
há 11 anos
Great site, free knowledge supporting. came to this site through *****
One tracking cookie found by google analytics.
Sobre este site
CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from arithmetic to history
Confiabilidade
91
/100Segurança da Criança
93
/100
This site uses cookies for analytics and personalised content. By continuing to browse this site, you agree to our cookies policy
Accept