Without the cost of any regular tuition fees on the students or their families, at least not initially...
All high school students should be required to enter into a lifelong legal contract specifying that upon their own eventual graduation and formal employment, after they are set in their future careers, whatever they may be, they shall be required to pay one percent of their annual income, however high or low it may amount to, to the schools that they attended. This is a very small amount of money from the individual students' point of view, but it may eventually mean millions upon millions of dollars being returned to the schools as payment for their educational work, thus allowing them to become ever-more effective learning institutions, which would in turn allow them to produce graduates with the abilities needed to gain higher, more advanced and more financially profitable future careers.
Those who do not graduate, or those who do graduate, but who, for whatever reason, never actually become employed in their entire lives, however unlikely that would seem for most students, do not have to pay anything.
All high school students should be required to enter into a lifelong legal contract specifying that upon their own eventual graduation and formal employment, after they are set in their future careers, whatever they may be, they shall be required to pay one percent of their annual income, however high or low it may amount to, to the schools that they attended. This is a very small amount of money from the individual students' point of view, but it may eventually mean millions upon millions of dollars being returned to the schools as payment for their educational work, thus allowing them to become ever-more effective learning institutions, which would in turn allow them to produce graduates with the abilities needed to gain higher, more advanced and more financially profitable future careers.
Those who do not graduate, or those who do graduate, but who, for whatever reason, never actually become employed in their entire lives, however unlikely that would seem for most students, do not have to pay anything.