Contents How to Use This Book Unit 1 Long Vowel a (a_e) Unit 2 Long Vowel a (ai, ay) Unit 3 Long Vowel i (i_e) Unit 4 Short Vowel i (ie, y, igh) Review I (Units 1-4) Unit 5 Short Vowel o (o_e) Unit 6 Short Vowel o (oa, ow) Unit 7 Short Vowel u (u_e, ue, ui) Unit 8 Short Vowel e (ee, ea) Review II (Units 5-8) Words I Know