William,
There are several things that can help with student retention. First, find out all you can about your students. Many students leave school due to outside pressures such as families in crisis, day care, transportation, etc.. Second, try to create a support system for your students. A support system can have a number of ways that it works. You can provide support, fellow students can provide support, and the students services office can provide support. Another thing is to try and create a personal relationship with students so they will see that you value them as individuals and that you want to be successful. This personal connection goes a long way in keeping students in school.
Gary
Gary Meers, Ed.D.