Long ago, Thunder was a mother sheep and Lightning was her son. When Lightning became angry, he shot bolts of lightning from his horns. This made Thunder yell at him, which shook the ground. Because they caused so much trouble in the village, the king made Thunder and Lightning leave Earth. But where did they go?Our World is a six-level primary series in British English that uses fun and fascinating National Geographic content, with stunning images and video, to give young learners the essential English language, skills, and knowledge they need to understand their world.National Geographic video inspires and motivates young learnersOur World Readers encourage reading for fun, and bring storytelling into your classroomFree online activities and support are available for teachers and learners at myNGconnect.com54 Readers9 full-colour readers per level (1 per unit)The readers include fairytales, legends, myths, original fiction and nonfiction that relate to the theme of the unitEach reader recycles vocabulary and language structures taught in the Student's BookThe readers feature on the storytelling segment of the Classroom DVD