There is always a debate about teaching reading at F.E level to students with a learning disability(i.e teach them to use the skills they already have rather than learning using phonics)
If you do want to have a go at using phonics and teaching tricky words here are some links to help you:
Department of Education
An introduction to sound
Phonics Play has an explanation and some free to use games
Games for the interactive whiteboard from TES I board (now have to pay to access) covering letter sounds in phase 1 and 2 developing Grapheme Phoneme Correspondence mainly as, at, pat, sat, tap
TES Letters and sounds phase 1 and 2 .
A PDF or publisher document. A collection of flashcards for phases one and two printed on pastel to assist dyslexic pupils with their phonics work as well as other pupils experiencing learning difficulties. The collection includes graphemes, tricky words and decodable words.
Another game is Picture match, a game Phase 1 and 2 words from Phonics Play
SEN teacher domino template can also be used to make your own word tiles