Educational changes implemented at Hunterdon Central Regional High School (New Jersey), based on a technical model that stresses mastery learning and is facilitated by a customized instructional technology, are described in this paper. A two-pronged strategy involves the formation of site-based management teams and a technology review committee. Plans also include the development of a campus-home computer network. The first section outlines plans for completion of two prototype classrooms, one for science and one for general technology. Curricular and instructional trends in mathematics, science, and educational technology are highlighted. The second section offers guidelines for the general design of various environments within the educational plant, with a focus on factors that impact facilities planning and on the characteristics of educational environments. The third section offers a description of Project Scope--which seeks to create two prototype classrooms--provides inventories, guidelines, and architectural designs for technology and biochemical laboratories. Four charts and 11 figures are included. (LMI)