The problem with talking about units and high school is that it means different things to different people. Out here in California, that equals a one-semester course and then you are done. In other parts of the country it can mean 5 year-long courses.
Either way, you want to choose a program that will let you pay by the course and that offers a diploma. A number of the programs on this site (see:
MU High School and
University of Miami Online High School) offer this.
Another choice is the
North Dakota Center for Distance Education (formerly the North Dakota Division of Independent Study). It offers individual courses for a reasonable amount of money.
All of those programs offer a regionally-accredited diploma. Looking around at the schools listed here would provide you with additional options.
Other questions?
Tom Nixon
Post edited by: Tom Nixon, at: 2008/03/08 22:34