Vocabulary Coverage in a High School Vietnamese EFL Textbook: A Corpus-based Preliminary Investigation

Authors

  • Nguyet Thi Minh Le Hanoi National University of Education, Vietnam
  • Huong Thi Dinh Hanoi National University of Education, Vietnam

DOI:

https://doi.org/10.52296/vje.2022.187

How to Cite

Le, N. T. M., & Dinh , H. T. (2022). Vocabulary Coverage in a High School Vietnamese EFL Textbook: A Corpus-based Preliminary Investigation. Vietnam Journal of Education, 6(2), 102–113. https://doi.org/10.52296/vje.2022.187

Abstract

In the context of English as a foreign language (EFL) teaching, textbooks play a crucial role in the classroom as the primary source of lexical input for learners. Thus, it is essential that textbooks can sufficiently facilitate learners in their overall comprehension and vocabulary learning, especially with the most frequent words in English. The study examined the vocabulary load of a locally-published EFL textbook in Vietnam for high school students focusing on the vocabulary coverage in relation to the 95% and 98% thresholds for text comprehension and the coverage of high-frequency word families in the textbook. To fulfil these objectives, a frequency-based analysis of word families using the Vocabprofilers on the https://www.lextutor.ca/ website was conducted with the 41,137-word textbook corpus. It is revealed that students need to have a vocabulary size of 3,000 and 5,000-word families to reach the coverage of 95% and 98% of the whole textbook, which would be too challenging for Vietnamese high school students. Moreover, the textbook was found not to represent the second 1,000-word list very well with the appearance of just over half of the second most frequent 1,000-word families. These findings highlight the role of teachers in adapting the textbook for more effective vocabulary learning and general comprehension of the materials.

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Author Biographies

Nguyet Thi Minh Le, Hanoi National University of Education, Vietnam

Le Thi Minh Nguyet is a Lecture in English Education at the Hanoi National University of Education, Vietnam. She has been working in the field for more than 15 years with diverse training experience across a variety of learners and teaching areas. She obtained her MA in English Linguistics from University of Language and International Studies, Vietnam National University, Hanoi. Her research interests include textbook evaluation and ICT in English Education.

Huong Thi Dinh , Hanoi National University of Education, Vietnam

Lecturer, Faculty of English 

References

Alfaki, I. M. (2015). Vocabulary Input in English Language Teaching: Assessing the Vocabulary Load in Spine Five. International Journal of English Language and Linguistics Research, 3(1), 1-14. https://doi.org/10.1017/CBO9781107415324.004

Alsaif, A., & Milton, J. (2012). Vocabulary input from school textbooks as a potential contributor to the small vocabulary uptake gained by English as a foreign language learners in Saudi Arabia. Language Learning Journal, 40(1), 21-33. https://doi.org/10.1080/09571736.2012.658221

Bowen, G. A. (2009). Document Analysis as a Qualitative Research Method. Qualitative Research Journal, 9(2), 27-40. https://doi.org/10.3316/QRJ0902027

Cao, T. H. P. (2018). Vocabulary in EFL Textbook: An Analysis of “Life A2-B1” Coursebook Used for Vietnamese Tertiary Students. Proceedings of the 7th Vietnamese Young Researchers Conference in Education at Hanoi National University of Education, Vietnam (section 3, pp. 548-556). Hanoi National University of Education Publishing House.

Dang, H. T. (2017). An evaluation of Vocabulary used in the textbook “Tieng Anh 12” published by Vietnam Education Publisher in 2008. Unpublished M.A. Thesis. Vietnam National University, Ha Noi. Dang, T. N. Y., & Webb, S. (2020). Vocabulary instruction and the good language teachers. In C. Griffiths, Z. T., & Brown, A. (Eds.) Lessons from good language teachers (pp. 203-218). Cambridge University Press.

Hoang, V. V. (2010). The Current Situation and Issues of the Teaching of English in Vietnam. Ritsumeikan Studies in Language and Culture, 22(1), 7-18.

Hoang, V. V. (2015). The Development of the Ten-Year English Textbook Series for Vietnamese Schools under the National Foreign Language 2020 Project: A Cross-Cultural Collaborative Experience. VNU Journal of Science: Foreign Studies, 31(3), 1-17.

Hoang, V. V. (2016). Renovation in Curriculum Design and Textbook Development: An Effective Solution to Improving the Quality of English Teaching in Vietnamese Schools in the Context of Integration and Globalization. VNU Journal of Science: Education Research, 32(4), 9-20.

Hu, M. H., & Nation, P. (2000). Unknown vocabulary density and reading comprehension. Reading in a Foreign Language, 13(1), 403-430.

Laufer, B. (1989). What percentage of text-lexis is essential for comprehension? In C. Lauren & M. Nordman (Eds.), Special language: From humans thinking to thinking machines (pp. 316-323). Multilingual Matters.

Laufer, B., & Ravenhorst-Kalovski, G. C. (2010). Lexical threshold revisited: Lexical text coverage, learners’ vocabulary size and reading comprehension. Reading in a Foreign Language, 22(1), 15.

Nation, I. S. P. (2001). Learning vocabulary in another language (Cambridge Applied Linguistics). Cambridge: Cambridge University Press. https://doi.org/10.1017/CBO9781139524759

Nation, I. S. P. (2006). How large a vocabulary is needed for reading and listening? Canadian Modern Language Review, 63(1), 59-82. https://doi.org/10.3138/cmlr.63.1.59

Nation, I. S. P., & Beglar, D. (2007) A vocabulary size test. The Language Teacher, 31(7), 9-13.

Nguyen, C. D. (2020). Lexical features of reading passages in English textbooks for Vietnamese high-school students: Do they foster both content and vocabulary gain? RELC Journal, 52(3), 509-522. https://doi.org/10.1177/0033688219895045

Nguyen, T. T. M, Marlina, R., & Cao, T. H. P. (2021). How well do ELT textbooks prepare students to use English in global contexts? An evaluation of the Vietnamese English textbooks from an English as an international language (EIL) perspective. Asian Englishes, 23(2), 184-200. https://doi.org/10.1080/13488678.2020.1717794

Prime Minister of SRV (2008). Teaching and Learning Foreign Languages in the National Education System, Period 2008-2020 (Issued under Decision No. 1400/QĐ-TTg signed by the Prime Minister of the Government of the Socialist Republic of Vietnam).

Rahmat, Y. N., & Coxhead, A. (2021). Investigating vocabulary coverage and load in an Indonesian EFL textbook series. Indonesian Journal of Applied Linguistics, 10(3), 804-814. https://doi.org/10.17509/ijal.v10i3.31768

Sun, Y., & Dang, T. N. Y. (2020). Vocabulary in high-school EFL textbooks: Texts and learner knowledge. System, 93, 102279. https://doi.org/10.1016/j.system.2020.102279

Vietnam MOET. (2010). Pilot English Curriculum for Vietnamese Primary Schools (Issued under Decision No. 3321/QĐ-BGDĐT by the Vietnam’s Minister of the Ministry of Education and Training).

Vietnam MOET. (2012a). Pilot English Curriculum for Vietnamese Lower Secondary Schools (Issued under Decision No. 01/QĐ-BGDĐT by the Vietnam’s Minister of the Ministry of Education and Training).

Vietnam MOET. (2012b). Pilot English Curriculum for Vietnamese Upper Secondary Schools (Issued under Decision No. 5290/QĐ-BGDĐT by the Vietnam’s Minister of the Ministry of Education and Training).

Vietnam MOET. (2020). Circular No. 25/2020/TT-BGDĐT on Procedure to select textbooks in general schools. https://luatvietnam.vn/giao-duc/thong-tu-25-2020-tt-bgddt-quy-dinh-lua-chon-sgk-trong-co-so-giao-duc-pho-thong-189806-d1.html

Webb, S. (2009). The effects of pre-learning vocabulary on reading comprehension and writing. The Canadian Modern Language Review, 65, 441-70.

Webb, S. A., & Chang, A. C. S. (2012). Second language vocabulary growth. RELC Journal, 43(1), 113-126. https://doi.org/10.1177/0033688212439367

Webb, S., & Nation, P. (2008). Evaluating the vocabulary load of written text. TESOLANZ Journal, 16, 1-9.

Webb, S., & Macalister, J. (2013). Is text written for children useful for L2 extensive reading? TESOL Quarterly, 47(2), 300-322. https://doi.org/10.1002/tesq.70

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Published

2022-06-08

How to Cite

Le, N. T. M., & Dinh , H. T. (2022). Vocabulary Coverage in a High School Vietnamese EFL Textbook: A Corpus-based Preliminary Investigation. Vietnam Journal of Education, 6(2), 102–113. https://doi.org/10.52296/vje.2022.187

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