Welcome to the Reef!
Fish swimming in a school
For updates and new releases sign up for the newsletter

The Reef is Blue Coral Learning's FREE library of explorations. Some are available through different creative commons licenses. Try a few out and reach out with feedback or suggestions for new explorations!

Sort by:

Guides

Periodic Table

Guide to the Solar System

Guide to the Earth

Guide to The Moon

Guide to Phases of the Moon

Guide to Voyager Probes' Journeys

Guide to Dinosaur Evolution

Art

Guide to The Last Supper

Guide to Yellow-Red-Blue

Guide to Young Girl Reading

Guide to A Sunday Afternoon

Guide to Bharat Mata

Guide to The Great Wave

Guide to American Gothic

History

Guide to Magellan's Voyage

Guide to Vasco da Gama's Voyage

Guide to Niccolò Polo's Journey

Guide to Marco Polo's Journeys

Guide to Voyager Probes' Journeys

Atlas of Ancestry & Origin

Atlas of US Expansion

Atlas of Pres. Elections