World Class. The course for secondary students with enquiring minds. World Class is a four-level course for secondary students of English. World Class 2 builds on and develops the approach established in World Class I. Each level of the course provides 90-100 classroom lessons. The Activity Book contains additional language practice activities and thorough recycling of grammar and vocabulary from the Students" Book. The material includes listening passages suitable for students working alone, and regular pronunciation and spelling exercises.