Using a case study approach, this investigation focused on the deliberations and decision-making processes involved in the development of a physical science curriculum to be delivered by interactive videodiscs. The mediating factors that influenced the developmental processes included the participants and their perceptions, their decisions and factors influencing their decisions. The Curriculum and Instruction Advisory Committee of the Texas Learning Technology Group was selected as the subject of this study which used qualitative data collection methods. Data collection included participant observation of curriculum meetings followed by structured interviews of the participants. Document analyses were triangulated with the observations and interviews to ascertain influences on decision-making processes. Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state mandates. Other influencing factors included research, tradition, and politics. Core curriculum was to be delivered by interactive videodiscs and include remediation and enrichment loops along with laboratory simulations. Participants stressed that students perform traditional laboratory experiments in addition to simulations. This curriculum also addressed the possibility of the course being taught by teachers not certified in physical science.