The series features a carefully sequenced, systematic presentation of grammar and a comprehensive coverage of all four skills.-- Functions, themes, language, and structures are recycled in fully illustrated dialogues, vocabulary, readings, and exercises.-- Listening activities provide practice in hearing, understanding, and responding to spoken English.Additional features of the course: -- Workbooks correspond to Student Book lessons and reinforce functions, structures, vocabulary, and pronunciation activities.-- Teacher's Editions contain teaching instructions interleaved with full-color student pages, along with answer keys (for Student Books and Workbooks) and listening scripts.-- Audiocassette Programs contain realistic recordings of conversations that provide students with listening, pronunciation, and intonation practice.-- A Test Program includes a placement test and two achievement tests for each level.-- Viewer's Guides offer a 4-page unit for each video segment with previewing, viewing, and extension activities.-- Video segments are 2 to 2-1/2 minutes long (50 min. in total).-- Video Teacher's Guides are available for each video level.