Here are two short videos introducing the American English Vowels.
There are 5 vowels: A, E, I, O, U
There are 15 distinctive vowel sounds.
Both videos do a great job in describing the pronunciation.
Have fun 
Learn A New English Word Everyday, today’s program Daily Pronunciation #32
We are looking at “Fathomable”. This is an adjective which means “knowable or comprehensible”.
Learn A New English Word Everyday, today’s program Daily Pronunciation #31
We are learning the word “Extraordinary”. This is an adjective which means “Exceptional and beyond ordinary or mediocre”.
Learn A New English Word Everyday, today’s program Daily Pronunciation #30
The word for today is “Dwindle”. This is a verb which means to gradually become less and less.
Learn A New English Word Everyday, today’s program Daily Pronunciation #27
The word is “Amicable”. This adjective means “Friendly or peaceful”.
Learn A New English Word Everyday, today’s program Daily Pronunciation #26
They focus on the word “Zenith”. This is a noun which means “The highest point above the observer’s horizon”
