The Read Write Inc. Phonics Complex Speed Sounds Poster supports the teaching of sounds and graphemes. This large classroom poster (A0 size) is useful for a quick review of the complex (one sound - many graphemes) Speed Sounds. This poster is also available in a pack of 10.Read Write Inc. Phonics is a proven DfE validated systematic synthetic phonics programme that ensures early success in reading, writing and spelling. It includes Speed Sound Cards, Word Cards, Storybooks, Non-fiction, Book Bag Books, eBooks and Writing books. It is supported by teacher resources and a full training package from Ruth Miskin Training to ensure easy and effective implementation.