Three years of experience as teaching assistant at Universidad Nacional de Colombia, plus a lot of years of experience as a personal tutor of diverse areas of mathematics
I would recommend Esteban to any student who’s interested in learning about mathematics, no matter the subject or its complexity, because I truly trust in Esteban’s skills as a teacher; he would do the impossible to make your learning possible. He’s the kind of teacher who makes enjoyable any theorem, no matter how difficult or abstract it may sound !!!!