The Houghton Mifflin Instructional DVDs used with Barker-Essential Mathematics and Aufmann-Basic College Mathematics are educational resources designed to enhance your understanding of mathematics. Published in 2005 by HMH College Division, these DVD-ROMs provide interactive instruction and applications in English language. Developed by author Richard N. Aufmann, these instructional DVDs are 9 oz in weight and cater to students looking to expand their knowledge in general mathematics concepts.