Randy Philipp, Ph.D.

Interim Director, STE; Director, CRMSE; & Professor

School of Teacher Education

San Diego

Mail Code


Randy grew up in the San Fernando Valley in California, where I earned a degree in mathematics and then a fifth year single-subject teaching credential in mathematics. I worked my way through college "busting tires" at Sears, and in my spare time I taught CPR courses for the American National Red Cross and I served as a Big Brother of Greater Los Angeles. I spent the next two years as a Peace Corps Volunteer teaching mathematics at a junior high school and in a teacher training institute in Liberia, West Africa, where, while out for a run one afternoon in the bush, I decided I enjoyed working with prospective teachers even though I did not know what I was doing. I decided then to pursue a graduate degree in mathematics education. I returned to the U.S. and taught mathematics in an inner-city Los Angeles high school and then in Canyon Country, north of Los Angeles. While teaching, I worked on an M.S. degree in mathematics at night and I also served on a crisis intervention help-line. Upon finishing my M.S. degree, I married, moved to Wisconsin, and studied for my doctorate under the direction of Tom Carpenter.


Courses Taught

  • TE  910A: Teaching Mathematics in the Elementary School (Methods)
  • TE  914: Teaching Mathematics in the Secondary School (Methods)
  • TE  903: Secondary School Student Teaching Seminar
  • TE  610A: Seminar in Mathematics Education -- Elementary School
  • TE  613: Seminar in Mathematics Education -- Secondary School
  • TE  511:  Diagnosis and Remediation of Difficulties in Mathematics
  • MathEd 603: Seminar in Research in Mathematics Learning and Instruction
  • MathEd 604: Seminar in Curriculum and Evaluation issues in Mathematics
  • MathEd 605: Research on the Teaching and Learning of Algebra
  • ED  690: Procedures of Investigation and Report
  • TE 600: Curriculum Development in Education
  • TE 795A: Master's Seminar, I
  • TE 795B: Master's Seminar, II
  • MATH 210: Number Systems in Elementary Mathematics
  • MathEd 212: Children's Mathematical Thinking


  • Ph. D., Mathematics Education (Minor:  Mathematics and Educational Psychology)  University of Wisconsin-Madison
  • M.S., B.A, Mathematics, Cal. State University-Northridge
  • Single Subject Teaching Credential, Mathematics, Cal. State University-Northridge


  • Whitacre, I., Bishop, J. P., Philipp, R. A., Lamb, L. L., Bagley, S., & Schappelle, B. P. (2015). ‘Negative of my money, positive of her money’: secondary students’ ways of relating equations to a debt context. International Journal of Mathematical Education in Science and Technology, 46(2), 234 249. (http://dx.doi.org/10.1080/0020739X.2014.956822)
  • Jacobs, V., Martin, H., Ambrose, R, & Philipp, R. A. (2014). Warning Signs: Recognize three common instructional moves that are generally followed by taking over children’s thinking. Teaching Children Mathematics, 21(2), 107–113.
  • Whitacre, I., Bishop, J. P., Philipp, R. A., Lamb, L. L., & Schappelle, B.P. (2014). Dollars and Sense: Students’ Integer Perspectives. Mathematics Teaching in the Middle School, 20(2), 84–89.
  • Philipp, R. A. (2014). Research on teachers’ focusing on children’s teaching in learning to teach: Teacher noticing and learning trajectories. J. J. Lo, K. R. Leatham, and L. R. Van Zoest (Eds.), Research Trends in Mathematics Teacher Education. Springer.
  • Bishop, J. P., Lamb, L. C., Philipp, R. A., Whitacre, I., & Schappelle, B.P. (2014). Using Order to Reason About Negative Numbers: The Case of Violet. Educational Studies in Mathematics, 86(1), 39–59.
  • Bishop, J. P., Lamb, L. L., Philipp, R. A., Whitacre, I., Schappelle, B. P., & Lewis., M. L. (2014). Obstacles and Affordances for Integer Reasoning: An Analysis of Children’s Thinking and the History of Mathematics. Journal for Research in Mathematics Education, 45(1), 19–61.