The inclusion of the subject Introduction to Mathematical Modeling in the fifth semester of the mathematics degree program prompted students to compare it with other courses, particularly in terms of classroom dynamics. This prompts an examination of whether modeling practices generate equitable learning opportunities and advance the objective of demonstrating—within the Gender and Mathematics framework—how classroom dynamics and modeling activities contribute to a paradigm shift in conventional approaches to teaching and learning mathematics in higher education. To this end, semi-structured interviews were conducted with students and the course instructor, adopting a gender-sensitive perspective and complemented by ethnographic observation of her teaching practice. Findings show that the modelling practices were connected to students’ lived realities and provided them with opportunities to expand the range of possible solutions, collaborate, and participate. This, in turn, made it possible to legitimize diverse ways of thinking about and doing mathematics, valuing the diversity of voices and experiences within the classroom.