This 30th volume of the Educational Media and Technology Yearbook describes current developments and trends in the field of instructional technology. In six sections, EMTY provides a comprehensive survey of general trends and issues in media and technology, special concerns for K-12 education, biographical profiles of leading figures in the field, related organizations and associations, and a complete mediagraphy for the year. Educational Media and Technology Yearbook has become a reference in many libraries and professional collections. Examined in relation to its companions of the past,...