Abstract

Although English language instruction has been available in Thailand since childhood, the proficiency level remains very low compared to other non-native English-speaking countries. This research aims to provide alternative instructional methods for further development of English language instructions in Thailand by focusing on vocabulary retention and how words are retained (Sayed, 2022). Vocabulary is essential in language learning since rich vocabulary enhances language proficiency (Aswad, Yassi, Pammu, Nasmilah, & Rezaei, 2022; Mahmood & Ahmed, 2023). This article reports the effects of teaching strategies using multimedia on vocabulary retention of Grade 6 students. Multimedia, such as visual aids and an online self-review platform, combined with teaching models, teaching and explaining vocabulary, blended learning, TPACK, and bite-sized learning, were used to design multimedia lessons. The research found that multimedia significantly affected the students’ short-term and long-term vocabulary retention. The short-term vocabulary retention test scores averaged 47.85, while the long-term vocabulary retention test scores averaged 39.47. The students maintained 82.5% of their vocabulary even after seven days, demonstrating the effectiveness of the multimedia teaching strategies in enhancing vocabulary retention. Students also expressed high satisfaction with the multimedia approach, with an average satisfaction score of 4.14 out of 5. Female students averaged higher satisfaction than male students across all dimensions, with the difference being significant in overall satisfaction.

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