The document summarizes observations of a 15-year-old male student from Honduras learning English in Pennsylvania. He has little prior English exposure, lives in a household where no English is spoken, and has no internet access at home. Data shows he struggles most with spelling, verb tenses, and rules, but is making progress communicating with peers. Many of his errors stem from interference from his native Spanish language, which differs from English in areas like pronunciation, word order, verb conjugation, and expressing possession. Through this experience of teaching English to a Spanish speaker, the author learned it is important to explain key differences between the languages.