The ability to learn new words is associated with the ability to repeat phonological forms (for a review: Gathercole, 2006). However, teaching of L2 vocabulary rarely involves an explicit or an implicit focus on phonological representations. Based on the hypothesis that teaching the phonological forms enhances the learning of L2 receptive vocabulary, we compare what effects a phonological form-focused teaching and a communicative method have on L2 receptive vocabulary learning.
Our participants are 127 Swiss German teenagers (mean age 12;6) learning French as a foreign language at the mandatory school. These low proficiency learners (level A1-A2) were taught either following a phonological form-focused explicit method or a communicative method. The learning objectives were similar in terms of phonemes, vocabulary and recruited skills. In each class, participants were randomly assigned to two groups that followed one or the other teaching method for six weeks (total lasting of instruction 4 hours).
The two teaching methods aimed at enhancing pronunciation, discrimination, knowledge of phoneme-grapheme correspondences and orthography of words containing two French phonemes. These two phonemes, the nasal vowel /ɔ̃/ and the voiced fricative /ʒ/, are known to be difficult to learn (Ruellot, 2014). The effects of the two teaching methods were evaluated in a pre-, immediate post- and delayed post-test design.
Five tasks were repeatedly administered: Receptive vocabulary was assessed by a Yes/No task, pronunciation by a repetition task, discrimination by an AX task, grapheme-phoneme correspondences by an identification task of written form corresponding aural nonwords, and maintaining in working memory by a nonword repetition task. Linear mixed models were fitted to the data to test for differences across treatments and target phonemes.
Overall, the results indicate that participants made significant progress in all five tasks, with no significant difference between the two teaching methods. However, differences between the teaching methods were observed depending on the interaction between the task and the phoneme at play. For /ɔ̃/, communicative teaching led to a significantly greater improvement in discrimination. For /ʒ/, the phonological form-focused teaching led to a significantly greater improvement in discrimination, pronunciation, and phoneme-grapheme correspondences. For receptive vocabulary, no significant difference was observed between the two teaching methods.
The similar increase in receptive vocabulary regardless of teaching method is in line with the assumption that knowledge of phonological forms is essential for vocabulary learning by low proficiency learners of a foreign language. Participants explicitly instructed on the phonological forms are able to identify the words as well as participants instructed on word meaning. Teaching L2 phonological forms when teaching vocabulary seems to contribute to new word learning, especially for items containing contrastively difficult phonemes. We conclude by discussing the meaning of our results for vocabulary learning in young learners in a school context.
Gathercole, S.E. (2006). Nonword repetition and word learning: The nature of the relationship. Applied Psycholinguistics, 27, 513‑543.
Ruellot, V. (2014). Introducing French nasal vowels at the beginner level: A demystification. Pronunciation in second language learning and teaching, 151‑155.