Happy Earth is a two-level topic-based course for children who are ready to build on early reading and writing. It is suitable for use after Happy Street, and extends the vocabulary and structures from the first years of English. Through a wide range of factual information, it develops the children\u00b4s language skill and awareness of the world. Activity Book: Vocabulary and grammar practice. A writing syllabus with real-life tasks guided picture composition. Pronunciation puzzles and rhymes.