*Educational Technology; Expenditure Per Student;

As a part of an overall study of large-scale communications satellite systems for education, an estimate was made of the amount of money available for media-technology for the next five to fifteen years. Information was gathered on public educational expenditures in the United States. Public elementary and secondary school expenditures were related to income per capita and enrollment through a log-linear model. An equation was developed to predict expenditures for the years 1975, 1979, and 1985 for various population projections. Several curves were developed to give some indication of money which might be available for media-technology as a function of the pupil-teacher ratio. For 1975, it was predicted, from 3 to 6 billion dollars might be expected to be available for pupil-teacher ratios of 25 and 30 respectively. For 1985 there was considerably more spread in the various projections. The overall results of the study indicate that sizable funds.might be availabl