Learning outcomes are clearly stated at the start and end of the units Critical thinking unit approach encourages students to analyze, synthesize, apply knowledge, and develop an individual voice around a topic Thought-provoking unit questions provide a clear focus for the units Reading and listening texts explore a range of academic subjects from biology to finance Explicit learning skills sections help students develop important academic skills such as scanning a text, listening for gist, and using a dictionary Digital Workbook includes substantial homework practice, reference and tests.