How now brown cow

Vowel diagram for English diphthongs including /aʊ/, charting tongue height and position during articulation

"How now brown cow" is a phrase used in elocution teaching since at least 1926 to demonstrate the diphthong /aʊ/.

References

  1. ↑ Bagley, Louie: "Elocution do's and dont's", Frederick A. Stokes Company, 1926
  2. ↑ Wise, Jessie; Buffington, Sara (2004). The Ordinary Parent's Guide to Teaching Reading. Charles City, VA: Peace Hill Press. pp. 203. ISBN 978-09-72860-31-4.