The Council of Chief State School Officers (CCSSO) is helping develop a system of state-by-state and national indicators of the condition of science and mathematics education in an effort to assist local, state, and national policymakers in making informed decisions. The report, "State Indicators of Science and Mathematics Education-1990," established baseline data for this system of indicators. This report includes the trends analysis of state-by-state science-mathematics indicators based on data collected from the National Assessment of Educational Progress (NAEP), the 1991 Schools and Staffing Survey, and CCSSO data collected from state departments of education. Current data is reported on five key educational indicators: student outcomes, curriculum, course enrollments, teacher supply and quality, and school conditions. Student outcome indicators include mathematics proficiency on NAEP and Advanced Placement results. Curriculum content indicators include an opportunity to learn index and teacher emphasis on areas of mathematics. Instructional time and participation indicators include elementary class time on science and mathematics, science and mathematics course enrollments, trends in course enrollments from 1990 to 1992, and equity in science and mathematics opportunities for students. Teacher quality, supply, and shortage indicators include teacher supply in mathematics and science, equity in the teaching force, and teacher preparation in science and mathematics. School condition indicators include class size, teachers' perceptions of the availability of materials and resources, and use of calculators. Appendices, making up half of the report, contain 39 tables with course enrollments in public schools and characteristics of teachers in public school by state, a technical appendix, and a directory of state course titles by reporting categories. Contains 75 references. (MDH)