Home Language Phonologies
These Venn diagrams compare some common home language phonologies with English to help our understanding of students' languages and the influence of those languages on their English acquisition.
Looking for a language that isn't listed here? You can find it by searching "language name + phonology" in Wikipedia, and comparing it to the American English phonology chart on the last tab below.
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Note that in addition to individual phonemes, some languages may have consonant clusters or diphthongs that English does not, and vice versa.
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Please bear in mind that languages typically have various dialects and accents, and the information shown below is pulled from the standard dialect and accent as represented on the Wikipedia page for each language's phonology. This means that it may not fit a particular student's language exactly, but it should be a helpful starting point. Letters written in parentheses only exist in some dialects of the language.
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The dialect and accent of English used for comparison is mid-western American English.
Arabic
The Arabic phonology used here is Modern Standard Arabic. Spoken Arabic and its phonologies vary widely by country, so be sure to look into your student's dialect if you need more specifics.
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Students coming from the following countries may speak Arabic: Iraq, Pakistan, Somalia, Sudan, Syria
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Major differences between Arabic and English are a larger number of fricatives in Arabic as well as many more sounds requiring articulation in the back of the mouth (velar, uvular, and pharyngeal).
Arabic speakers will likely do well with English stops and fricatives. They may need focused practice with vowel sounds and the English 'r'.
How to use phonologies
The phonological Venn diagrams above use the International Phonetic Alphabet symbols to represent sounds. The full chart of these sounds can be seen and heard here, for reference. If you are new to these symbols, they are well worth learning, as they encode all of the possible phonemes that humans can articulate, and are an excellent way to quickly identify differences in phonologies and phonemes that share similarities, etc.
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An understanding of home language phonologies can be put to use in your teaching in several ways.