Master the most common vowel sound in English: the schwa in unstressed syllables.
Relax your mouth and tongue; make a short, neutral vowel: /ə/.
Do not over-open the mouth or spread the lips like /æ/ or /iː/.
Is this syllable stressed? If not, can the vowel reduce to /ə/?
💡 Schwa is the default reduced vowel. The spelling can be any vowel letter: a/e/i/o/u. British vs US note: reduction happens in both varieties, but /r/-colored vowels differ (many UK accents are non-rhotic so 'teacher' may end with /ə/, while most US accents are rhotic and often have an /r/ sound, though the vowel is still reduced).
✓about = /əˈbaʊt/
✗about = /æˈbaʊt/
The first syllable is unstressed and typically reduces to schwa.
✓teacher = /ˈtiːtʃə/
✗teacher = /ˈtiːtʃer/
Many -er endings are /ə/ in non-rhotic accents; even in rhotic accents, the vowel is reduced.
✓family ≈ /ˈfæm(ə)li/
Schwa may appear in fast speech as syllables compress.