A project called "radioprimaria" is bringing classes by radio to fourth, fifth, and sixth grades in a rural area of Mexico to make up for the lack of teachers in these grades. Even though the project was largely unsupervised and plagued with disorganization and equipment problems, children taught with radio did as well as children in the traditional classes, as measured by achievement scores. A more serious problem in the contest of "radioprimaria" is that while education is highly valued as a means to better jobs and a more affluent life style in the cities, the city slums are jammed by the rural influx and there are already more educated persons than there are appropriate jobs. Therefore, "radioprimaria" is seen as somewhat useful in the process of rural education, but rural education, given current conditions, is hardly useful at all. (Author/RH)