Exposing children to a diverse range of literary and informational texts， the Core Concepts program helps develop important literacy and cognitive skills necessary to meet many of the Common Core State Standards. Gold Light and Gold Ray are the only known pair of elephant twins in the world! Photojournalist Richard Sobol has masterfully captured the twins' playfulness， as he shows the twins feeding， bathing， napping， and learning with their trainer Pai. Elephant Twins transports readers to Ban Tha Klang， Thailand， to play with the baby elephants and meet this unique pair of brothers! Elephant Twins covers the concept Animals.