Vocabulary mastery is one of the fundamental aspects of English language learning, particularly for elementary school students. However, many young learners experience difficulties in understanding, remembering, and pronouncing English vocabulary. Therefore, teachers need instructional media that can facilitate vocabulary learning while maintaining students’ motivation and participation. This study aims to describe the implementation of flashcard media in teaching vocabulary at SDN 02 Muaropaiti and to explore students’ responses toward its use. This research employed a qualitative descriptive approach. Data were obtained through preliminary observations, interviews with the English teacher and students, and documentation. The findings revealed that flashcards were implemented through vocabulary introduction, pronunciation practice, matching activities, guessing games, and evaluation sessions. Students demonstrated positive responses toward flashcard-based learning because the visual images helped them understand and remember vocabulary more effectively. The findings also showed that larger and clearer flashcards increased students’ motivation and participation in classroom activities. Furthermore, flashcards contributed to vocabulary retention and classroom interaction. Nevertheless, some challenges were identified, including pronunciation difficulties and differences in students’ learning preferences. The study concludes that flashcards are effective instructional media for supporting vocabulary learning among elementary school students and creating a more interactive learning environment.