摘要:Abstract In this article we show some experience reports lived by three teachers in the context of diversity in Basic Education, that currently teach in Mathematics Graduation courses at two public universities in Foz do Iguaçu/PR, Brazil. Also, we intend to present some discussions about the challenges these mathematics teachers encounter in the practice of the profession when facing the diversity present in the classroom, especially with those associated to the special educational needs of the students. These discussions are generated by events witnessed in a university extension project, which has two students with visual deficiency, as well as by a lived experience as recent graduate, whose performance occurred in a school with deaf students, and other experienced in the Supervised Internship with an extremely heterogeneous group, composed of repeating students of different ages, social and cultural classes, sexualities, creeds and special educational needs. These facts permitted us to experience the diversity that´s present in Basic Education, as well as to rethink and discuss the Mathematics teacher formation, concluding that the elaboration and execution of extension projects, linking the University to the School, is a plausible way for a formation dedicated to Inclusive Education.