enseñanza a distancia [ bachillerato a distancia | curso por correspondencia | enseñanza por correspondencia | INBAD | Instituto Nacional de Bachillerato a Distancia | radiodifusión escolar | radio educativa | teleeducación | teleuniversidad | televisión educativa | UNED | universidad a distancia | Universidad Nacional de Educación a Distancia ]
distance learning [ educational broadcast | educational radio | educational television | education by correspondence course | e-learning | learning by correspondence course | schools broadcast | television teaching | educational radio(UNBIS) ]