This action research project was designed to improve faculty knowledge of hearing loss and its effects on education at two Illinois elementary schools. Sixty-nine faculty members participated in the project. Methods of assessment of faculty knowledge included a survey, questionnaire, document analysis, and anecdotal records of informal conversations. The intervention involved a staff development workshop, monthly newsletters focused on specific aspects of hearing impairment, and one-on-one assistance when needed. The effectiveness of the inservice and newsletters was measured by comparison of pre- and post-intervention surveys and questionnaires. Results from the questionnaire indicated that the faculty at both sites increased their knowledge. Also, faculties at both sites reported favorable attitudes toward the intervention and felt their knowledge had increased. Seventeen appendices include the pre- and post-intervention surveys and questionnaires, results of document analysis, an outline of the inservice, inservice handouts, the newsletters, and data analysis tables. (Contains 29 references.) (DB)