As we enter the second decade of open course materials, interest is growing in alternate models that include much more of the support necessary for independent learners and that can be used directly as courses at colleges and universities. This “open courseware” builds upon the lessons learned in openly publishing course materials through OpenCourseWares (including MIT), as well as the opportunities raised by the confluence of the growing interest in open educational resources (OERs) coupled with declining university budgets. Through Project Greenfield we aim to build upon selected course materials published by MIT OpenCourseWare and transform them into “full courses” including support for formative assessment, the addition of existing, illustrative and interactive OERs. Presented by Brandon Muramatsu at the OER'11 Conference, Manchester, UK, May 12, 2011.