RT bachelor thesis T1 Teachers' purposes and beliefs about using the L1 in the foreign language classroom in a Primary school in Andalusia T2 Propósitos y creencias del profesorado sobre el uso de la L1 en el aula de lengua extranjera en un centro de Educación Primaria en Andalucía A1 Galán Sánchez, Teresa A2 Didáctica de la Lengua y la Literatura K1 First language K1 Foreign Language K1 Spanish as a First Language K1 English as a Foreign Language K1 Use of the L1 K1 Analysis of the L1 Interventions K1 Purposes K1 Beliefs K1 Primary school K1 Research AB The current Bachelor Dissertation is based on an investigation related to English teaching in Primary Education. The aim of the study is to analyse the way in which Spanish as a first language (L1) is used in English as a Foreign Language (EFL) lessons. This research studies, both in a quantitative and qualitative way, the amount of L1 produced by one teacher during fifteen EFL lessons, as well as the purposes why the L1 was used in EFL teaching. Therefore, an analysis of fifteen EFL classes from two school years (Year 1 and 5) is included in this research, enabling not only to display the general amount of L1 used in EFL teaching, but also to show a wider view of how the use of the L1 changes and evolves concerning the different students’ groups assisted. Direct observation and online interviews arranged with the two EFL teachers involved in the investigation were the two principal tools used for collecting the data analysed in this study. Finally, due to the high amount of L1 used in EFL lessons, this research also provides the reader with recommendations, which are oriented to teachers, about the ways in which the L1 should be used in EFL teaching, for instance. YR 2020 FD 2020-07 LK http://hdl.handle.net/10498/24668 UL http://hdl.handle.net/10498/24668 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026