Sharon Stefan

Profile image of Sharon.Stefan
Mathematics Faculty
 Phone: 623.935.8453
 Location: MON 124-C
Tuesday - Thursday:
11:00 am-12:30 pm
Office Hours Additional Information 
Office hours are face-to-face! Wednesdays are reserved for research meetings. If virtual option is better, please contact me for arrangements.


MS in Mathematics
University of Iowa, Iowa City, IA
BS in Mathematics
Loyola Marymount University, Los Angeles, CA

I was born in East Los Angeles, California, and a proud daughter of Guatemalan immigrants. I have lived in California, Indiana, Iowa, New York, Arizona, Texas, Chile, and the US Virgin Islands.  My background is in teaching or researching math and math education in both English and Spanish. Before joining the math department at Estrella Mountain Community College in Fall 2020, I was a full-time math professor at Lone Star Community College in Houston for 9 years.  Our family decided to come back to Arizona in August 2019 to be closer to my family in California. I enjoy spending time with my husband, Wolfgang, and our dogs, Chewy, Chito, and Elsa.  I am a beginner Yogi, enjoy hiking, am a very slow runner, enjoy anything Star Wars and Hello Kitty, listen to podcasts, read books in math, psychology, or sociology, and write in my journal.  I’m an unashamed nerd.  I’m an introvert by nature and get mistaken for being an extrovert all the time.

Academic Interests 
Mathematics and Mathematics Education
College Service 
2023-present STEM Center of Excellence Director
2023-present Honors Faculty Advisor Board HFAB
2021-present, STEM Committee
2021-present, Hispanic Heritage Month and Native American Heritage Month
2020-present, Diversity, Equity, Inclusion Taskforce
2021-2023, All USA Scholarship Selection Committee and Maricopa Community Colleges Foundation (MCCF)
2022 Culturally Relevant Teaching Training
National Council of Teachers of Mathematics (NCTM)
Mathematical Association of America (MAA)
Society for Industrial and Applied Mathematics (SIAM)
Society for the Advancement of Chicanos/Hispanics and Native Americans in Science (SACNAS)
Arizona Mathematical Association of Two Year Colleges (ArizMATYC)
Arizona Association of Teachers of Mathematics (AATM)
Publications & Intellectual Contributions 

Camillo, V., & Lima, S. (2006). Supplemented Principal Ideals. In D. V. Huynh, S. K. Jain & S. R. Lopez-Permouth (Eds.), Contemporary Mathematics (Vol. 419, pp. 49-57). Providence, RI: American Mathematical Society.

Interview with Matthew Casey.  KJZZ Explains:  Nepohualtzintzin.  KJZZ, March 2, 2020.

Conference Presentations 

Are you as smart as the AI algorithm?  Learning through the lens of a Machine Learning algorithm and the use of text-generated AI images for classroom discussion on biases, AI in Education Summit, Agua Fria High School, November 20, 2023, Avondale, AZ

Preserving the Past, Constructing the Future, 2023 Fall Global Dialogue Series: "Why Globalize the Sciences?”, District International & Intercultural Education, Maricopa County Community College District, November 15, 2023, Tempe, AZ

Nuestras raíces están en las matemáticas: How our Latina/o history fosters our self-identity and sense of belonging, Hispanic Heritage Month Lunch and Learn presentation, Estrella Mountain Community College, October 4, 2023, Avondale, AZ

Understanding the Community College Student Population and role of Professors, Professional Development Seminar, Arizona State University, February 1, 2021, Tempe, AZ

Intelligence of the Indigenous:  Mayan Numeration systems, Hispanic Heritage Month Presentation, Lone Star College CyFair, September 19, 2018, Cypress, Texas

The Use of Didactic objects and Models to promote conversations in the classroom, Annual Mathematics Symposium, Lone Star College CyFair, March 23, 2018, Cypress, Texas 

Awards and Recognitions 

Recipient of Faculty Excellence Award, National Institute for Staff and Organizational Development (NISOD) Award, nominated by Lone Star College CyFair, 2017.

Nominee, Faculty Excellence Award for National Institute for Staff and Organizational Development (NISOD), Lone Star College, 2012, 2014, 2015, 2016, 2018, 2019

Recipient of Dr. Christal Albrecht Learning Signature award, Lone Star College, Spring 2015.

Recent Professional Development Activities 

Grant Panel Reviewer for Tensor-SUMMA (Strengthening Underrepresented Minority Mathematics Achievement) for Mathematical Association of America (MAA), 2014-2022.

Grant Panel Reviewer for Tensor Women & Mathematics Grants for Mathematical Association of America (MAA), 2022

Chapter Reviewer for Mathematical Association of America (MAA), 2021

Participant in NSF Research Experiences for Teachers (RET) on Sensors and Machine Learning at Arizona State University, Summer 2022

Classes Current Teaching
Name Title Term Days Times/Dates
MAT225 View class details for Elementary Linear Algebra (MAT225)Elementary Linear Algebra SPR24 TR 1:00pm - 2:15pm
JAN 16 - MAY 10
MAT227 View class details for Discrete Mathematical Structures (MAT227)Discrete Mathematical Structures SPR24 JAN 16 - MAY 10
MAT227 View class details for Discrete Mathematical Structures (MAT227)Discrete Mathematical Structures SPR24 TR 2:30pm - 3:45pm
JAN 16 - MAY 10
MAT220 View class details for Calculus with Analytic Geometry I (MAT220)Calculus with Analytic Geometry I FAL24 TR 2:30pm - 4:35pm
AUG 20 - DEC 13
MAT227 View class details for Discrete Mathematical Structures (MAT227)Discrete Mathematical Structures FAL24 AUG 19 - DEC 13
MAT227 View class details for Discrete Mathematical Structures (MAT227)Discrete Mathematical Structures FAL24 TR 1:00pm - 2:15pm
AUG 20 - DEC 13

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