Closed-circuit network for educational television

THE Washington County, Maryland, Board of Education is conducting a 5 year experiment to evaluate the use of closed-circuit television as a teaching medium. The application of the medium is divided into three phases corresponding to the school years of 1956¿57, 1957¿58, and 1958¿61 as shown in Fig. 1. The first phase provides for the interconnection of five program originating points with eight public schools in Hagerstown and vicinity with three television channels. The second phase provides for the expansion of the network to include the interconnection of 23 schools with 6 television channels. The third phase provides for the further expansion of the network to include all 48 schools in the County. The existing and planned extensions are shown on Fig. 1.