Happy Earth is a topic-based course with a communicative emphasis that builds on previous language development. By drawing on a wide range of factual information, it develops the children's language skills along with their general knowledge.
Unit 1 Our bodies
Unit 2 At leisure
Unit 3 Science focus
Unit 4 Society and us
Unit 5 One Earth
Unit 6 Around the world
Unit 7 Fame and fortune
Unit 8 Into the future