This qualitative descriptive action research study explores the contribution of customized lessons with cultural content in the learning of English as a Foreign Language (EFL).. This study was conducted with a group of 17 undergraduates from the English Language Teaching (ELT) program at a state university in south-eastern Colombia. Data were collected via students’ artefacts (EFL lessons developed by the participants) with corresponding selfassessment, teachers’ field notes, and surveys on students’ perceptions. Findings suggest that designing customized lessons anchored in principles of second language acquisition results in more effective language learning. Additionally, using cultural content in the lessons makes communication more meaningful as undergraduates develop cultural knowledge and understanding. Finally, addressing learning styles and providing learning strategies in the lessons greatly contribute to EFL learning among undergraduates.

中文翻译：

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具有文化内容的定制课程对大学生英语学习的贡献

这项定性的描述性行动研究旨在探索具有文化内容的定制课程对英语作为外语学习（EFL）的贡献。这项研究是与17位来自英语教学（ELT）计划的本科生一起进行的。哥伦比亚东南部的国立大学。数据是通过学生的人工制品（由参与者开发的EFL课程）收集的，并进行了相应的自我评估，教师的田野笔记以及对学生看法的调查。研究结果表明，设计以第二语言习得为基础的定制课程可提高语言学习效率。此外，在课程中使用文化内容可以使交流随着大学生发展文化知识和理解而变得更加有意义。最后，