Phase 5 large colourful graphemes. Some of these graphemes represent phonemes sounds that they have already learnt a grapheme for.

Phase 5 Letters And Sounds Literacy Resources Sparklebox
Phonics in a sentence. Research from the national inquiry into the teaching of literacy in australia found that early systematic and explicit teaching of phonics is a necessary part of an integrated approach to the teaching of reading.

Phonics Whimsy Workshop Teaching