This document is a thesis presented by Irma Brown Forbes to obtain a degree in English Teaching. The thesis aims to describe the acculturation process of non-indigenous English teachers working in the indigenous communities of Talamanca, Costa Rica. It presents background information on the location of the communities and the schools where the research took place. It also outlines the objectives, variables, instruments, and analysis of the results from questionnaires given to the teachers regarding their personal, educational, cultural backgrounds and emotional experiences working in the indigenous communities. Charts and graphs are used to present the results from the questionnaires.