This video will teach you the twelve single vowel sounds of English, also called monophthongs.
You will learn the following sounds:
/i:/, /ɪ/, /ʊ/, /u:/, /ɒ/, /ɔ:/, /ʌ/, /ɑ:/, /e/, /ə/, /æ/ and /ɜ:/.
This video comes with two exercises on long and short vowel sounds. You can find them in the pronunciation category on the blog.