Mathematical Sciences

Hortensia Soto-Johnson

**School of Mathematical SciencesNatural and Health Sciences**

(970) 351-2425

(970) 351-1225

Ross Hall 2240-C

- Ph.D. Educational Mathematics, University of Northern Colorado (1996)
- M.S. Mathematics, University of Arizona (1994)
- M.S. Mathematics Education, Chadron State College (1989)
- B.S. Mathematics, Chadron State College (1988)

2014-present |
Professor of Mathematics |
University of Northern Colorado |
Teaching and Research |

2008-2014 |
Associate Professor of Mathematics | University of Northern Colorado | Teaching and Research |

2005-2008 |
Assistant Professor of Mathematics |
University of Northern Colorado |
Teaching and Research |

2003-2005 |
Associate Professor of Mathematics |
Colorado State University-Pueblo |
Teaching and Research |

2001-2003 |
Associate Professor of Mathematics |
University of Southern Colorado |
Teaching and Research |

1995-2001 |
Assistant Professor of Mathematics |
University of Southern Colorado |
Teaching and Research |

1989-1992 |
Director of Mathematics Learning Center |
University of Southern Colorado |
Coordination and Teaching |

Teaching and learning of undergraduate mathematics through the lens of embodied cognition.

- Soto-Johnson. (In Press). A Door to STEM Possibilities: Las Chicas de Matemáticas.In (Eds.) L. Weist, J. Sanchez and H. Crawford-Ferre, Out-of-School-Time STEM Programs for Females: Implications for Research and Practice.
- Soto-Johnson, H., Craviotto, C., & Parker, F. (2011). What motivates mathematically talented young women? In D. J. Brahier and W. R. Speer (Eds.), Motivation and Disposition: Pathways to Learning Mathematics, 73rd NCTM Yearbook (pp. 127-140). Reston, VA: NCTM.

- Soto-Johnson, H., Hancock, B., & Oehrtman, M. (In Press). The interplay of mathematicians’ conceptual and ideational mathematics about continuity of complex-valued functions.International Journal of Research in Undergraduate Mathematics Education.
- Karakok, G., Soto-Johnson, H., & Anderson-Dyben, S. (2015). Secondary teachers’ conception of various forms of complex numbers. Journal of Mathematics Teacher Education, 18(4), 327-351.
- Soto-Johnson, H., & Troup, J. (2014). Reasoning on the complex plane via inscriptions and gestures. Journal of Mathematical Behavior, 36, 109-125.
- Soto-Johnson, H. (2014). Visualizing the Arithmetic of Complex Numbers. International Journal of Technology In Mathematics Education, 21(3), 103-114.
- Soto-Johnson, H., & Fuller, E. (2012). Assessing proofs via oral interviews. Investigations in Mathematics Learning, 4 (3), 1-14.
- Soto-Johnson, H., Cribari, R., & Wheeler, A. (2009). The impact of written reflections in a geometry course for preservice elementary teachers. Quaderni di Ricerca in Didattica Matematica, 19(4), 64-73.
- Soto-Johnson, H., Yestness, N., & Dalton, C. (Spring 2009). Assessing multiple abstract algebra assessments. Investigations in Mathematics Learning, V. 1(3), 1-26.
- Soto-Johnson, H., Iiams, M., Oberg, T., Boschmans, B., & Hoffmeister, A. (2008). Promoting preservice elementary teachers’ awareness of learning and teaching mathematics conceptually through KTEM. School Science and Mathematics 108(8), 345-354.
- Soto-Johnson, H., Dalton, C., & Yestness, N. (2008). Students' perceptions of sense of community in abstract algebra: Contributing factors and benefits. Eurasia Journal of Mathematics, Science and Technology Education, 4(4), 373-380.
- Chacon, P. & Soto-Johnson, H. (2003). Encouraging Young Women to Stay in the Mathematics Pipeline: Math Camps for Young Women, School Science and Mathematics,103(6), 274-284.
- Chacon, P. & Soto-Johnson, H. (1998). The Effects of CAI in College Algebra Incorporating Both Drill and Exploration, International Journal of Computer Algebra in Mathematics Education, 5(4), 201-216.
- Soto-Johnson, H. (1998). The Impact of Technology on Infinite Series, International Journal of Computer Algebra in Mathematics Education, 5(2), 95-109.

- Nemirovsky, R. & Soto-Johnson, H. (2013). On the emergence of mathematical objects: The case of eaz. In (Eds.) S. Brown, G. Karakok, K. H. Roh, and M. Oehrtman, Proceedings of the 16th Annual Conference on Research in Undergraduate Mathematics Education, 2013, Denver, Colorado. 2.219-2.226. http://sigmaa.maa.org/rume/Site/Proceedings.html
- Karakok, G., Soto-Johnson, H. & Anderson-Dyben, S. (2013). In-service secondary teachers’ conceptualization of complex numbers. In (Eds.) S. Brown, G. Karakok, K. H. Roh, and M. Oehrtman, Proceedings of the 16th Annual Conference on Research in Undergraduate Mathematics Education, 2013, Denver, Colorado. 2.1-2.7. http://sigmaa.maa.org/rume/Site/Proceedings.html
- Soto-Johnson, H., Oehrtman, M., Noblet, K., Roberson, L., & Rozner, S. (2012). Experts’ reification of complex variables concepts: The role of metaphor. In (Eds.) S. Brown, S. Larsen, K. Marrongelle, and M. Oehrtman, Proceedings of the 15th Annual Conference on Research in Undergraduate Mathematics Education, Portland, Oregon. 443-447. http://sigmaa.maa.org/rume/crume2012/RUME_Home/RUME_Conference_Papers.html
- Lai, Y., McCallum, W., & Soto-Johnson, H. (2011). The role of universities in preparing mathematics teachers: Insights from the international congress of mathematical education. An international perspective on mathematics education: Reflections on ICME 11, 61-73. http://www.nctm.org/icme/
- Soto-Johnson, H., Oehrtman, M., & Rozner, S. (2011). Dynamic visualization of complex variables: The case of Ricardo. Proceeding from the 14th annual conference on research in undergraduate mathematics education, p. 488-503.http://sigmaa.maa.org/rume/Site/Proceedings.html
- Soto-Johnson, H., Noblet, K., & Rozner, S. (2010). The nature of engaging preservice teachers in proof validation: How do their techniques compare to mathematicians’ methods? Proceeding from the 13th annual conference on research in undergraduate mathematics education.http://sigmaa.maa.org/rume/crume2010/Abstracts2010.htm
- Soto-Johnson, H., King, K., & Haley, C. (2010). Does mentoring a graduate student effect student achievement?Proceeding from the 13th annual conference on research in undergraduate mathematics education.http://sigmaa.maa.org/rume/crume2010/Abstracts2010.htm
- Yestness, N. & Soto-Johnson, H. (2008). Abstact algebra: Proofs and diagrams, Proceeding from the 11th annual conference on research in undergraduate mathematics education.http://cresmet.asu.edu/crume2008/Proceedings/Proceedings.html
- Soto-Johnson, H., Yestness, N., & Dalton, C. (2007). Assessments that improve proof-writing skills, Proceeding from the 10th annual conference on research in undergraduate mathematics education. http://www.rume.org/crume2007/eproc.html
- Soto-Johnson, H., Dalton, C., & Yestness, N. (2007). Sense of community: Contributing factors and Benefits, Proceeding from the 10th annual conference on research in undergraduate mathematics education. http://www.rume.org/crume2007/eproc.html

- Dittman, M. & Soto-Johnson, H., Dickinson, S., & Harr, T. (In Press). Game Building with Complex-Valued Functions. PRIMUS.
- Wawro, M., Ellis, J., & Soto-Johnson, H. (2015). Lessons learned from mentioning and partnerships for women in research in undergraduate mathematics education. Poster presented at the American Educational Research Association (AERA) Annual Meeting, Chicago, IL.
- Soto-Johnson, H. & Flores, A. (2015). Las Chicas de Matemáticas2014. Eureka. 13-23.http://www.uaq.mx/ingenieria/publicaciones/eureka/n33/soto.pdf
- Wawro, M., Ellis, J., & Soto-Johnson, H. (2014). MPWR: Mentoring and partnerships for women in RUME. Association for Women in Mathematics Newsletter, 44(5), 20-23.
- Soto-Johnson, H. (Fall 2014). Finding what we are not asked to find. Colorado Mathematics Teacher, 19-20.
- Craviotto, C., & Soto-Johnson, H. (2009). Las chicas’ view of Las Chicas de Matematicas. MAA FOCUS 29(3), 19-20.
- Soto-Johnson, H. (Winter 2008). Different cultures but similar issues: Different cultures thus different solutions. Colorado Mathematics Teacher 41(3), 10-14.
- Soto-Johnson, H. & Craviotto, C. (2008). Las chicas de matematicas: UNC math camp for young women. Association for Women in Mathematics Newsletter, 38(6), 15-17.
- Soto-Johnson, H., Iiams, M., Hoffmeister, A., Oberg, T., & Boschmans, B. (2007). Our Voyage with Knowing and Teaching Elementary Mathematics, Teaching Children Mathematics, 13(9),493-497.
- Jones, M, & Soto-Johnson, H. (2006). Rotational Symmetries of the Regular Polyhedrons,Mathematics Teacher, 99(9), 606-609.
- Soto-Johnson, H. (April 2005). Alumni Profiles: Colorado State University-Pueblo, Math Horizons, 18-19.
- Soto-Johnson, H. & Brilleslyper, M. (Aug/Sept 2004). FirstAnnual Pikes Peak Regional Undergraduate Mathematics Research Conference, MAA FOCUS, 24(6), p. 25.
- Soto-Johnson, H. & Bechthold, D. (2004). Tessellating the Sphere with Regular Polygons,Mathematics Teacher, 97(3), 165-167.
- Soto-Johnson, H. & Johnson, R. (2000). Who Lied about the Hot Tamales, CHANCE,13(4), 31-34.
- Griesan, R. & Soto-Johnson, H. (Spring 2000). Selecting an Appropriate Viewing Window for Graphing Polynomials, AMATYC Review, 21-25.

- Burton W. Jones Distinguished Teaching Award – MAA Rocky Mountain Section (2016)
- MAA Meritorious Service Award (2012)
- College of Natural and Health Sciences’ Excellence in Service Award (2010)
- Outstanding Professor, Delta Xi Chapter of Delta Zeta (2008)
- Outstanding Faculty, Housing and Residence Life Academic Recognition (2006)
- Outstanding Faculty Award College of Science and Mathematics at Colorado State University – Pueblo (2005)
- Outstanding Service Award College of Science and Mathematics and Colorado State University-Pueblo (2004)
- Awarded the Distinguished Young Alumni at Chadron State College, (2001)