Diane Haleas

Chicago, Illinois

Diane's Story

Diane Haleas has been teaching at Saint Ignatius College Prep in Chicago since 1988. She teaches AP Comparative Government and Politics and World History. Diane is passionate about motivating students to be lifelong learners and about international relations. She has served as the director of the Saint Ignatius Model United Nations program since its inception in 1999. Since then, the SIMUN program has grown to be one of the most successful MUN programs in the country. 

Working with students on global issues and communication skills has been a highlight of her career. Diane earned a B.A. in Government and International Relations from the University of Notre Dame, an M.S. Ed from Northwestern University, and National Board for Professional Teaching Standards certification. She has won several awards for her outstanding teaching and contributions to Model UN. 

Diane takes great pride in writing dozens of college recommendation letters for her students each year. Diane is an avid reader, loves to cook, and enjoys spending time with her four adult children. She especially enjoys traveling to far-off locales like China, Russia, and Japan with her husband and members of her SIMUN team.


“What lies behind you and what lies before you, pales in comparison to what lies within you.”― Ralph Waldo Emerson

Teaching Discipline(s)

History/Social Studies



Saint Ignatius Teacher of the Year Award University of Rochester

Singer Family Prize for Excellence in Secondary Teaching

Patricia Leahy Fellowship Award for Contributions to Model United Nations

Golden Apple Finalist Outstanding Educator Award from the University of Chicago

Outstanding Educator Award from Stanford University

Outstanding Educator Award from Washington University in St. Louis