One aspect of the Greece (New York) Central School District's Continuing Education Division is an adult literacy program for students who enter with a reading level below the sixth grade as measured by the Test of Adult Basic Education (TABE) (17 percent of students). Students at this level receive instruction in one of four environments: adult basic education classes at an education center or at an apartment complex, or workplace literacy classes at one of two sites. The average student receives 46 hours of reading instruction per semester (10 weeks), with workplace students receiving 56 hours over 8 weeks. The mean grade-level gain for students after about 50 hours of instruction is approximately 1.8 years, although individuals vary considerably, with those completing a semester usually gaining 2-3 years of growth. Those who stay for a school year or longer can achieve as much as 4 years of growth. Students are taught by a diagnostic-prescriptive model, with continuous monitoring and refinement of students' programs based on current assessment. The most beneficial aspects of this process have been the use of standardized testing and student intake interviews. The program continues to emphasize the diagnostic-prescriptive method and plans to add diagnosis of learning disabilities. (KC)