Unit 1 au and aw
Unit 2 ou and ow
Unit 3 oi and oy
Unit 4 ea and oo
Unit 5 y Sounds
Unit 6 l Blends
Unit 7 r Blends
Unit 8 s Blends
Unit 9 Three-letter Blends
Unit 10 tr and tw
Unit 11 kn, wr, and mb
Unit 12 ck, ng, and nk