This report presents national trend data on the supply and turnover of public school teachers in K-12 special and general education. Data were derived from three large national probability samples of teachers taken over a six-year period from 1987 to 1994. A summary of the results is in two sections. The first section, on trends in teacher supply, covers established teachers, the demand for entering teachers, the trends in entering teachers and entering first-time teachers, and the trends in re-entering experienced teachers. The second section presents data on trends in teacher turnover including exit attrition from the teaching force, switching between special and general education teaching, retention of teachers in the same school, reassignment of teachers to different schools within the same district, and trends in the migration of teachers to schools outside their home district. The four tables present detailed data on: (1) the trends in the percentages of teachers by four supply sources for three school years; (2) the trends in the percentages of entering teachers by four sources of supply for three school years; (3) the trends in field switching and attrition of teachers in special and regular education (trends over three school years); and (4) the trends in school transfer of teachers in special and general education (trends over three school years). Two appendices include an explanation of data analysis methods and a glossary. (DB)