Learning Chinese: A Foundation Course in Mandarin Textbook
This online textbook represents materials that were used in the first four semesters (two years) of the Mandarin program at MIT. They eventually formed the basis of a print textbook of the same name, published by Yale University Press (elementary level available 2011, intermediate level due late 2011 or early 2012). Information about the Yale edition, plus online materials that could supplement the OCW material with some allowances, is available at the companion website. The Yale website also includes extensive audio-clips (numbering over 40 by July 2011, up through Unit 4), which cover much of the same ground as the OCW version.