In almost every rural public school in Kansas last week, at 2:15 in the afternoon, the schoolchildren were shushed into silence by their teachers, then heard from a loudspeaker:
"The Radio Classroom! . . . Hello, boys and girls. . . . Are you getting just the sort of food you need? How many vitamins are you getting? Enough? Can you have too many? What about the water you drink? Is it safe? Are you sure?"
So began the hygiene lesson—15 minutes' worth. Other days, pupils got an equivalent dose of social studies, science, art or music.
The mind behind the loudspeakers is R....
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