The purpose of this book is to tell you stories about children from Oaxaca, Mexico, and about how their ‘English’ student teachers, along with a language teacher educator (my role), participating in a critical-ethnographic-action-research project (CEAR Project, henceforth) attempted to decolonize primary English language teaching (PELT, henceforth) with these children. The CEAR Project deals with a worldwide phenomenon that is bringing a ‘thing’, so-called ‘English’ (Pennycook, 2006), into elementary schools. The CEAR Project, a university-based initiative that I started in collaboration with student teachers of the English language, has been carried out since 2007 in different urban and semi-urban schools, community centers and BIBLOCA, a non-profit library in Oaxaca, Mexico. The main purpose of the CEAR Project is to challenge the apparent world phenomenon that associates English with ‘progress’ and neoliberal practices – that regard the world as a global market where everything can be sold and purchased, including the English language with its alleged benefits (Matear, 2008; Pennycook, 2006, 2007; Sayer, 2015) and Indigenous and ‘minoritized’ languages with their alleged backwardness and marginalization (Barabas, 1999a, 1999b; Maldonado Alvarado, 2002; Ferreiro, 1997); in other words, to decolonize PELT. In this book, I present the stories that originated from the first time that the CEAR Project was carried out, with the collaboration of 10 student teachers, in two different low socio-economic-status (SES) elementary schools with a culturally and linguistically diverse student body, where Indigenous children from different ethnic groups and mestizo children were integrated. The first school, Horizons School, belonged to the Indigenous strand of elementary schools in Oaxaca and was ‘bilingual’ on paper, but actually all the classroom instruction was in Spanish. The second school, Downtown School, belonged to the mainstream strand and all the instruction was in Spanish as well. Specifically, in this book, I focus on one classroom from each of these two schools.