The Knowledge Box

Saylor Academy

Free, open online courses for people everywhere.

This is a collection of courses that can help you earn college credits in a variety of topics. The courses are gathered from a variety of Open Educational Resources, and reorganized by World Possible, the team that maintains RACHEL.

College credits are granted through CLEP exams. The College Board's College-Level Examination Program (CLEP) has been the most widely trusted credit-by-examination program for over 40 years, accepted by 2,900 colleges and universities and administered in more than 1,800 test centers, including in many prison facilities.

Saylor Academy Textbooks

Over 100 Free Textbooks covering a wide range of topics that can help with earning college credits.

Wikiversity

Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning. This offline version was provided by Kiwix.

Provided by Kiwix and World Possible This attribution cannot be removed. The original content is the work of the content creators. Where listed, World Possible or other providers have gone through painstaking work to create an offline compatible format of this content. This download of this content cannot be resold or included in a product that is commercialized in any way. This module was downloaded from World Possible servers.

Great Books of the World

A searchable, categorized selection of over 400 of the most beloved and respected books from around the world, collected from Project Gutenberg.

Top 100 Favorites
Top 100 Non-Fiction
Adventure (24 titles)
Biographies (24 titles)
Children's Stories (23 titles)
Comedy & Humor (38 titles)
Drama (35 titles)
Fantasy (20 titles)
Folklore (7 titles)
Historical Fiction (38 titles)
Historical Non-Fiction (30 titles)
Horror (18 titles)
Mystery (17 titles)
Philosophy & Religion (30 titles)
Poetry (41 titles)
Romance (35 titles)
Science Fiction (27 titles)
Short Stories (25 titles)

GCF LearnFree.org

Hundreds of high-quality illustrated articles and videos focusing on technology, job training, reading, and math skills, produced by the Goodwill Community Foundation.

MedlinePlus Medical Encyclopedia

More than 4,000 cross-referenced medical articles from the U.S. National Library of Medicine and the National Institutes of Health. Includes comprehensive illustrations and photographs.

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These materials do not provide medical advice and are for informational purposes only. This content is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read here.

PhET

PhET Interactive Simulations, a project at the University of Colorado Boulder, is a non-profit[1] open educational resource (OER) project founded in 2002 by Nobel Laureate Carl Wieman. PhET began with Wiemans vision to improve the way science is taught and learned. Their stated mission is "To advance science and math literacy and education worldwide through free interactive simulations."

Kolibri

Kolibri is an open-source offline ed-tech platform developed by Learning Equality, focused on increasing the availability of relevant and aligned learning materials, fostering innovative pedagogy, and boosting learning outcomes.

You can create an account to track progress. Later, you can login again and continue where you left off.

Boundless Textbooks

An amazing collection of searchable textbooks on a variety of advanced subjects, including extensive linked definitions of terms.

Core Knowledge

The Core Knowledge Curriculum Series provides comprehensive, content-rich learning materials based on the Core Knowledge Sequence. Student readers, teacher guides, activity books, and other materials are available for Language Arts and History and Geography.

Educate!

Educate! provides youth with skills training in leadership, entrepreneurship and workforce readiness, along with mentorship, to start real businesses at school.

Hesperian Health Guides

Easy to understand, practical, accurate, and heavily illustrated guides on health topics that for remote areas where access to medical personnel and facilities is limited.

These materials do not provide medical advice and are for informational purposes only. This content is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read here.