The Educational Testing Service is developing a new series of assessments intended for use by states as part of the process of licensing or certifying teachers. Stage III assessments in this series will evaluate the beginning teacher's application of teaching knowledge and skills. Stage III assessments will be performance-based. Job analysis studies were conducted to provide data that would define the domains of elementary, middle, and secondary school teaching and provide evidence supporting the content validity of the performance assessment measures to be developed for Stage III. Each study was conducted in two phases: a series of meetings with experts to establish an initial inventory of tasks and a large-scale survey to solicit the judgments of large numbers of education professionals. In the elementary school study, responses were obtained from 3,602 teachers, 125 administrators, and 232 teacher educators. They judged 53 of the original 85 defined tasks as meeting the 3.5 importance eligibility standard for the test of elementary school teaching professional functions. Twelve appendixes include the survey itself and supporting information, and 25 tables present study findings. (Contains 20 references.) (SLD)