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The study finds out the triggers for switching from one language to another in the classrooms at the tertiary level in Bangladesh. It takes a closer look at the spoken discourse in the classroom situations where English is taught as a second language. It examines and presents data on the reasons behind the teachers´´ and the students´´ Bangla-English code- switch as well as presenting the percentage of the students´´ frequency level for code-switching occurring in the classrooms. It also helps to find the fundamental trigger for code-switching. Code- switching is the central issue of bilingual research (Milroy, 1995, p. 7) and the study findings contributes more information on code-switching as well as adding valuable information regarding classroom management techniques, second language acquisition, discourse analysis, and bilingualism.

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Tanzia Siddiqua is currently a faculty in Scholastica Ltd. Language studies has always been a field of her interest. She was a student of BAF Shaheen College Dhaka; completed graduation from BRAC University in Applied Linguistics & ELT; a French Diploma from Alliance Fran‡aise; she´´s currently doing MA in Linguistics in North South University.

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