PBS
Pbs Teachers: Who Was Charles Darwin?
Explore the scientific ideas that paved the way for Charles Darwin's theory of natural selection. Map and research his scientific journeys and explain how his theory changed the course of science and the world.
Curated OER
Unesco: Palau: Rock Islands Southern Lagoon
Rock Islands Southern Lagoon covers 100,200 ha and includes 445 uninhabited limestone islands of volcanic origin. Many of them display unique mushroom-like shapes in turquoise lagoons surrounded by coral reefs. The aesthetic beauty of...
Curated OER
Unesco: Mexico: Sian Ka'an
In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means 'Origin of the Sky'. Located on the east coast of the Yucatan peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as...