Phase 5 (Vowel Sounds) set has been written specifically for the progression of Rainbow Phonics. Phase 5 Vowel Sounds introduces a further 20 letter patterns, mainly focusing on alternative vowel sounds. Phase 5 readers will follow students week-by-week through the program providing them with text-based context to practice their emerging reading skills. Build confidence in older, struggling readers as they master the phonics code. 12 books at the Phase 5 level. Life Science & Nature topics with vibrant, diverse and modern photography.