Examined middle school teachers' concerns, knowledge, and use of technology in teaching, and how these related to their school's level of technology integration. Discusses the Computing Concerns Questionnaire; the Teaching with Technology Instrument; the Concerns Based Adoption Model; Stages of Concern about Computing; computer confidence; technology training; age; and access to computers. Excerpt from Output for Teaching with Technology Instrument and Response Categories for Demographic Variables are appended. (Author/LRW)