Book, Authored
Barrett, J. E., Cullen, C. J., Klanderman, D., & Behnke, D. (2017). A Pleasure to Measure. (National Council of Teachers of Mathematics): Reston, VA.
Book, Chapter
Jeune, M., Cullen, C.J. (2024). Mathematics Education for Children with Critical and Terminal Illness. In: Clements, M.(., Kaur, B., Lowrie, T., Mesa, V., Prytz, J. (eds) Fourth International Handbook of Mathematics Education. Springer International Handbooks of Education. Springer, Cham. https://doi.org/10.1007/978-3-031-51474-6_20
Barrett, J. E., Wickstrom, M. H., Tobias, J. M., Cullen, C. J., Cullen, A. L., & Baek, J. M., (2019), Chapter 3: Children’s Measurement Project. In P. Sztajn, P. H. Wilson (Eds.), Learning Trajectories for Teachers: Designing Effective Professional Development for Math Instruction. (pp. 48-74). New York, NY: Teachers College Press.
Barrett, J. E., Clements, D. H., Sarama, J., Miller, A. L., Cullen, C. J., Van Dine, D. W., . . . Klanderman, D. (2017). Integration of results: A new learning trajectory for area. In J. E. Barrett, D. H. Clements, & J. Sarama (Eds.), Children’s measurement: A longitudinal study of children’s knowledge and learning of length, area, and volume. Journal for Research in Mathematics Education monograph series (Vol. 16, pp. 129–148). Reston, VA: National Council of Teachers of Mathematics.
Barrett, J. E., Cullen, C. J., Miller, A. L., Eames, C. L., Kara, M., & Klanderman, D. (2017). Area in the middle and later elementary grades. In J. E. Barrett, D. H. Clements, & J. Sarama (Eds.), Children’s measurement: A longitudinal study of children’s knowledge and learning of length, area, and volume. Journal for Research in Mathematics Education monograph series (Vol. 16, pp. 105–127). Reston, VA: National Council of Teachers of Mathematics.
Cullen, C. J., Barrett, J. E., Kara, M., Eames, C. L., Miller, A. L., & Klanderman, D. (2017). Integration of results: A new learning trajectory for volume. In J. E. Barrett, D. H. Clements, & J. Sarama (Eds.), Children’s measurement: A longitudinal study of children’s knowledge and learning of length, area, and volume. Journal for Research in Mathematics Education monograph series (Vol. 16, pp. 181–201). Reston, VA: National Council of Teachers of Mathematics.
Conference Proceeding
Martin, T. S., Cullen, C.J., Chávez, O, & Kimball, K., (2024). Developing directed-length definitions for the tangent and secant functions. In Editors, Proceedings of the forty-sixth Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (pp. 887 – 896). Cleveland, OH: Publisher. https://doi: 10.51272/pmena.46.2024
Cullen, C. J., & Martin, T. S. (2018). Exploring trigonometric relationships: Is it a function? In Editors, Proceedings of the 40th Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (pp. 259–262). Greenville, SC: Publisher.
Dimmel, J., Nickels, M., Cullen, C., & Bock, C. (2018). Mathematical making in immersive virtual environments working group. In Editors, Proceedings of the 40th Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (pp. 1422–1428). Greenville, SC: Publisher.
O’Dell, J. R., Barrett, J. E., Cullen, C. J., Rupnow, T. J., Clements, D. H., Sarama, J., Rutherford, G., & Beck, P. S. (2017). Using a Virtual Manipulative Environment to Support Students’ Organizational Structuring of Volume Units. In E. Galindo & J. Newton (Eds.), Proceedings of the 39th Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (pp. 1329–1336). Indianapolis, IN: Hoosier Association of Mathematics Teacher Educators.
Beck, P. S., Eames, C. L., Cullen C. J., Barrett, J. E., Clements, D. H., & Sarama, J. (2014). Linking children’s knowledge of length measurement to their use of double number lines. In Liljedahl, P., Nicol, C., Oesterle, S., & Allan, D. (Eds.). Proceedings of the 38th Annual Conference of the International Group for the Psychology of Mathematics Education. (Vol. 2) (pp. 105-112). Vancouver, Canada: PME
Journal Article
Cullen, C. J., Ssebaggala, L., and Chávez, O. (2024). Rate of change: Degrees vs. radians. North American GeoGebra Journal, 12(1): 25-31.
Cullen, C. J., & Hertel, J. T. (2023). Improving our criticism of technology in mathematics education. Mathematics Teacher: Learning & Teaching PK–12, 116(5), 314–321. https://doi.org/10.5951/mtlt.2023.0004
Hertel, J. T., & Cullen, C. J. (2023). Technology: Reflecting and Moving Forward. Mathematics Teacher: Teaching and Learning PK–12, 116(5), 310–311. https://doi.org/10.5951/MTLT.2023.0053
Rupnow, T., O’Dell, J. R., Barrett, J. E., Cullen, C. J., Clements, D. H., Sarama, J., Rutherford, G. (2022). Children’s Construction of a Volume Calculation Algorithm for a Rectangular Prism with a Dynamic Virtual Manipulative, Journal of Mathematical Behavior, 67. https://doi.org/10.1016/j.jmathb.2022.100998
Sarama, J., Clements, D. H., Barrett, J. E., Cullen, C. J., Hudyma, A., & Vanegas, Y. (2022). Length measurement in the early years: teaching and learning with learning trajectories, Mathematical Thinking and Learning, 24:4, 267-290, DOI: 10.1080/10986065.2020.1858245
Cullen, C. J. (2024, February) Comparing Radians and Degrees. Presented at the 38th Annual Illinois Council of Teachers of Mathematics Conference – Southern Section.
Cullen, C. J. (2024, February). Making Sense of Fractions. Presented at the The 38th Annual Illinois Council of Teachers of Mathematics Conference - Southern Section.
Cullen, C. J., & Chávez, O. (2024, September) The What and Why of Radians. Presented at the 103rd Annual National Council of Teachers of Mathematics Conference, September 27, 2024.
Cullen, C. J., Martin, T. S., Chávez, O. (2024, March) Developing geometric concept definitions for tangent and secant. Presented at the 51st Annual Conference of the Research Council on Mathematics Learning (RCML).
Cullen, C. J., Ssebaggala, L, & Cullen, A. L., (2024, January 11). Constructing Models of Relationships. NCTM. Online.
Hertel, J.T. & Cullen, C. J. (2024, September) Examining how we use Technology in Teaching Mathematics. Presented at the 103rd Annual National Council of Teachers of Mathematics Conference, September 27, 2024.
Martin, T. S., Cullen, C. J., Chávez, O., & Kimball, K. (2024, November) Developing Directed-Length Definitions for the Tangent and Secant Functions. Presented at the 46th Annual Meeting of PME-NA, Cleveland, OH, November 7 – 10, 2024.
Ssebaggala, L., & Cullen, C. J., (2024, March) Student Reasoning: Insights into Trigonometric Relationships. Presented at the 51st Annual Conference of the Research Council on Mathematics Learning (RCML).
Cullen, C. J. (2023, April) Does this Look Random? Presented at the 69th Annual Western Illinois University Mathematics Teacher's Conference.
Cullen, C. J. (2023, February). Sine, Cosine, Tangent → Sine, Secant, Tangent. Presented at the The 37th Annual Illinois Council of Teachers of Mathematics Conference - Southern Section.