The U.S. Department of Education's Office of Vocational and Adult Education asked CNA Corporation (CNAC) and its partners to identify promising strategies within community colleges, businesses, organized labor, and the military that enable adult learners to improve their math skills and transition to higher level math courses or jobs requiring higher level mathematical abilities. For the first part of the project, researchers gathered information through a literature review on existing postsecondary developmental math programs, with a particular focus on the following three issues: (1) What is the definition, or skill threshold, of adequate student preparation in postsecondary level math? (2) What institutions provide developmental math education, and how does instruction differ across these institutions? (3) What strategies appear to hold promise for helping adult learners strengthen their math skills and move to college level math courses or work assignments requiring higher level math? Strategies identified in this review will provide the basis for the second phase of this project, which will identify successful math programs in the institutions surveyed in phase one. [This report was prepared by the CNA Corporation for the Division of Adult Education and Literacy, Office of Vocational and Adult Education, U.S. Department of Education.]