Vowel teams vs Diphthongs

Vowel Teams
Diphthong

Term Think of... Question it answers Example
Vowel team How the word is spelled "How many vowel letters work together?" ea in team, oa in boat, ee in see
Diphthong How the word sounds "Does the vowel glide from one sound to another?" /aɪ/ in time, /eɪ/ in day, /ɔɪ/ in boy

Some vowel teams are not diphthongs, Some diphthongs are not written with vowel teams.

Word Vowel Team Sound Diphthong?
see ee /iː/ ❌ No
moon oo /uː/ ❌ No
team ea /iː/ ❌ No
Word Spelling Diphthong
time i + silent e /aɪ/
home o + silent e /oʊ/ (AmE), /əʊ/ (BrE)
name a + silent e /eɪ/