The loan is forgiven at the rate of 20 or $3,000, whichever is greater, for each full year of teaching in a South Carolina public school in a critical subject or critical geographic area. If you teach in a public South Carolina school in both a critical subject and a critical geographic area, your loan will be forgiven at the rate of 33 1/3 or $5,000, whichever is greater, for each year of full-time teaching. If you have not been teaching for the full academic year, you must have taught a minimum of 76 days to be considered for forgiveness.