We were looking at vowel digraphs in handwriting today. Our little rhyme of 'when two vowels go out walking the first vowel does the talking' helped us think about the sounds the vowels made when together. An example of this is 'ea' as in 'team'. The sound is the name of the first vowel.
We also worked on the sounds that other vowel digraphs make when the rule doesn't apply. An example of this is 'ou' as in 'house''.