First language (L1) as a mediational tool in peer interaction in English speaking tasks by EFL college students in Vietnam

The sociocultural theory providesnew perspectives towards learning, shedding new lights on the potential role of the first language (L1) in language learning conducive to linguistic development and higher mental achievements.Drawing on the sociocultural theory, the authorinvestigates the use of L1 in speaking tasks by EFL college students in Vietnam.