UNIT1 Short Vowels:a o i UNIT2 Short Vowels:u e UNIT3 Blends UNIT4 Long Vowels:a UNIT5 Long Vowels:i UNIT6 Long Vowels:o e u UNIT7 Digraphs:sh ph th UNIT8 Digraphs:wh ng ch tch wr kn UNIT9 r-Controlled Vowels:ar er ir ur UNIT10 Diphthongs:oo ou ow oy oi