Amazon.com description: Product Description: A complete content mastery resource offered online, iLrn Tutorial allows students to work with real math notation in real time, with unlimited practice problems, instant analysis and feedback, and streaming video to illustrate key concepts. And live, online, text-specific tutorial help is just a click away with vMentor?, accessed seamlessly through iLrn Tutorial. The iLrn Tutorial access card located inside the cover of the text provides an access code for students to utilize when logging into iLrn. For additional support you may also order the iLrn Student Resource Kit.