Migration is a constant factor in England, especially since the end of the 20th century, around 13.5% of primary school populations are considered learners English as an additional language (National Statistics, 2007). Many researchers have studied the association between working memory capacity and reading in English as a second language (ESL) learners through measures designed by Daneman and Carpenter (1980, cited in Alptekin and Ercetin, 2009). Lesaux and Siegel (2003) stated that there is an ongoing developmental process regarding reading skills, particularly in English, that relies heavily on phonological processing, as this cognitive process is hypothesized to play an important role on reading skills. reading of a child. Holmes and Gethercole (2013) found that children's performance was affected by poor working memory. On the other hand, Haughey (2002) found that people with high levels of phonological working memory had more vocabulary knowledge than those with low levels of phonological working memory. This suggests that constant repetition can help children understand the English language more quickly and that with both systems slaved to working memory, it is the phonological loop that is responsible for holding verbal information (Baddeley, 2002). This is supported by Gathercole, Willis, Emslie and Baddeley (1992) who stated that the phonological component, in working memory, participates in the development of vocabulary acquisition. Gathercole et al stated that the phonological loop is responsible for manipulating speech-based information. Additionally, phonological working memory plays a major role in vocabulary learning in young children (Haughey, 2002). This has drastic...... middle of article ......y and vocabulary development during the early school years: a longitudinal study. Developmental psychology. American Psychological Association Inc. Gathercole, S., Pickering, S., Ambridge, B., & Wearing, H. (2004). The structure of working memory from 4 to 15 years. Developmental psychology. DOI: 10.1037/0012-1649.40.2.177. Haughe, J. (2002). Impact of phonological working memory on ESL students' vocabulary learning. McNair Scholars Journal. Holmes, j. and Gathercole, S. (2013). Bringing working memory training from the laboratory to schools. Educational psychology: an international journal of experimental educational psychology. DOI: 10.1080/01443410.2013797338. Lesaux, N. and Siegel, L. (2003). Reading development in children who speak English as a second language. Developmental psychology. DOI: 10.1037/0012-1649.39.6.1005.