This critical classroom study of language oppression draws from the notion of existing inequalities based on power relations in education research, as addressed in a critical ethnography. This critical classroom study explores the cases of two recent immigrant students, "Manuel" and "Malena," on the -U.S.-Mexican border near El Paso, Texas, who were attending a fifth-grade dual language class at "Border PK-5 Elementary School" (pseudonyms). This school followed a 50/50 dual immersion model from K-fourth grade. By the fifth grade in this school, 70% of the academic time was taught in English and 30% in Spanish. Documented data from observations in the classroom and students' multimodal testimonios reveal acts of linguistic bullying against the two recent immigrants based on their underdeveloped second language, English, when self-regulated learning was at work in a cooperative learning environment.