The application of Critical Pedagogy (CP) based on strengthening and valuing the identity of each person to educate them in diversity and achieve social equity becomes key to helping learners identify themselves as agents of change to contribute to the creation of social solutions. The study reports the experiences of pre-service teachers of the Teaching English as a Foreign Language (TEFL) undergraduate program while implementing CP to teach English to children and teenagers who are beneficiaries of a Charity Foundation in Cuenca, Ecuador. The findings show that pre-service teachers were able to implement the principles of CP not only to teach English but also to foster in students a sense of self-identity and social justice, achieving the goals of using this approach.