school of education

Chafee Hall, 10 Chafee Rd, Kingston, RI 02881


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Cornelis (Kees) de Groot

Kees DeGroot


Dr. de Groot was born and raised in the Netherlands where he received a bachelor’s equivalent degree for teaching secondary physics and mathematics. He immigrated to the United States in 1983 and has been a middle school and high school teacher and a teacher educator since 1989. He loves travelling, bicycling, and makes his own music in his home studio.


  • Teaching and learning with technology
  • Teacher’s mathematics content and pedagogical content knowledge
  • Realistic Teacher (Mathematics) Education
  • Transitional aspects of the learning of mathematics K-12
  • Assessment practices


  • Ph.D., Mathematics Education, New York University, 2000
  • M.S., Secondary Mathematics Education, SUNY New Paltz, 1987
  • Undergraduate degree, Utrecht, The Netherlands, 1982


de Groot, C., & Boyajian, M. (2015). Like terms: What’s in a name? Mathematics Teacher, NCTM, Reston, VA, (108), 7, 506-511.

de Groot C., & Hersey, N. (2015). When products are sums. New York State Mathematics Teachers’ Journal, (65), 1, 22-27.

de Groot, C., Fogleman, J., & Kern, D. (2014). Using mobile technologies to co-construct TPACK in teacher education. J. Keengwe & M. B. Maxfield (Eds.). Advancing Higher Education with Mobile Learning Technologies: Cases, Trends, and Inquiry-Based Method, Hershey. PA: IGI Global Publications. XX-XX. doi:10.4018/978-1-4666-6284-1

de Groot, C., and A.D. Isabelle (2012). Making inroads: Connecting preservice and inservice teachers in a school-university partnership centered on inquiry. Excelsior: Leadership in Teaching and Learning, (6), 2, 3-22.

de Groot, C. (2009). Go fly a kite: Using diagonals to classify quadrilaterals. Ontario Mathematics Gazette.

Isabelle, A., and C. de Groot (2009). Nature’s solar collectors. Science and Children, National Science Teacher Association.

Isabelle, A., and C. de Groot (2008). Alternate Conceptions of Pre-service Elementary Teachers: The Itakura Method. Journal for Science Teacher Education.

de Groot, C. (2008). Tangrams are not toys. Ontario Mathematics Gazette, (46), 3, 35-38. (Reprinted).

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