In October 1990, the Tennessee State Department of Education began a project to establish a plan for educational technology which will move the state into the 21st Century; from that plan a vision for the 21st Century Classroom and an implementation plan for the Tennessee Education Network have been developed. The purpose of this study was to examine the effectiveness of the 21st Century Classroom teacher training program in K-12 public schools. Perceptions and activities of 298 elementary and secondary teachers who received and utilized the 21st Century technology and participated in state-mandated training were investigated. A four-part instrument was used to gather data on: (1) demographics; (2) whether technology was used for specific tasks (lesson planning, record keeping, communication, and instructional presentation); (3) teachers' perceptions about the use of technology as measured by several constructs - voluntariness, relative advantage, compatibility, image, complexity, demonstrability, visibility, and trial ability; and (4) usefulness of the training topics of basic concepts, word processing, data base, spreadsheet, instructional software, optical technology, and telecommunications. Results indicate that technology training for teachers is required to implement technology in the classroom. (Contains 20 references.) (AEF)