Here is a worksheet I created to teach classification of vowels and Diphtongs sounds.
You also can use the the phonemic chart created by the British English Council
You can download the phonemic chart by clicking here
Phonetic transcriptions can be verified using the Cambridge Online Dictionary
- Slideshow with the Phonetic Symbols
- Information of the use of IPA charts in classes
- A Little bit more of info about the Phonemic Chart by The English British Council
- Download a set of Phonetics symbols in a PDF Format