“Enriching School Mathematics” is an ongoing effort to broaden the mathematical content knowledge of high school and middle school teachers in the Tucson area. It gives teachers a chance to become more comfortable with concepts in discrete mathematics, statistics, and probability. An increased comfort level in these areas helps the teachers to better prepare their students for AIMS (Arizona Instrument to Measure Standards). A second focus of the project is reviewing ideas in algebra and geometry from different points of view, concentrating on real-world applications and different representations of standard topics. Through a two-week summer workshop and inservices during the school year, teachers have the opportunity to obtain and share new teaching ideas with workshop facilitators and fellow teachers. This program was developed by the University of Arizona Department of Mathematics in cooperation with Catalina Foothills, Amphitheater, Sunnyside, Flowing Wells, Marana and Tucson Unified School Districts, and was funded by Eisenhower Grants awarded by the Arizona Board of Regents.