Class Sizes Growing but What About Funding?

In the past few years there has been a noticable decrease in classroom size.  However, just this year there has been an increase in students, but no funding.  This is trouble some for teachers, because they then have to spend more money out of their own pockets to help make sure all of their students have the materials they need since the school itself does not have the financial capabilties to supply enough materials for each unit.  Teachers see this trend as something to worry about but some principals see it is a good thing and a way in which we may need to innovate the way we teach to accomodate all of these different children and their learning styles...but how?  Are we going to hold regular classes, distance education classes, on-line classes, etc. from school and reach all students that way so that we do not end up with 30-40 students in a class?  That sounds like all well in good, but what about when your community is poor and the technology is not in place to within educational opportunities like that?