Mobilizing Minds: Teaching Math and Science in the Age of Sputnik
Geometry Teaching on Closed-Circuit Television, about 1960 and Televised Teaching of Biology, 1965
Private companies went on to develop somewhat less expensive closed circuit television systems for the schools. The Philco Corporation adapted the system it had developed for industrial security for use in geometry teaching. Diamond Electronics suggested televised biology teaching. Entire public television stations, such as WETA in Washington, D.C., had their origins in science teaching.