Mark Koester

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Mark Koester

Professor of Mathematics and Statistics

Mathematics & Statistics

Office Hours

Spring 2026

T TH 9:15-9:45, 12:00-12:30, 1:45-2:45pm
W (Virtual): 12:00-1:00pm
Office: SI 1038

Research Interests

    Grading for growth

Teaching Interests

    Teaching mathematics for sense-making and reasoning
    Lesson Study
    History of Math

Education

PhD in Mathematics Education

State University of New York at Buffalo

MS in Mathematics Leadership

Bank Street College of Education

MS in Secondary Education/Math

City University of New York Queens College

BS in Mathematics

State University of New York at Albany

Published Works

    Koester, I. M. (2025). Productive Struggle in a Secondary Mathematics Education Program. (). Emerald Publishing. Koester, I. M. (2024). Mathematics Intervention Toolkit. , https://www.cde.state.co.us/comath/math-toolkits Johnson, M. J., Konuk, N., Koester, I. M. . Johnson, Janelle; Konuk, Nursen; & Koester, Mark. (Accepted). “STEM Collaborations: Building Interdisciplinary Collaboration with Lesson Study at an Urban Commuter University.. (). Taylor & Francis/Routledge. Koester, I. M. . Lesson Study with Preservice Secondary Math Teachers. (). . Koester, I. M. . Specialized Content Knowledge for Teachers of Mathematics. Colorado Mathematics Teacher. Koester, I. M. (2015). Embracing Mathematics. , Bernhardt, E. P., Koester, I. M. (2015). Preparing mentors: Professional development to support clinical practice. . The Field Experience Journal, 15(1), 37-57. . Dollard, D. C., Koester, I. M., Corash, N. D. . Using Role-play to Focus a Teaching Methods Course on Practice. Action in Teacher Education.