There are some great sites out there to find out more about phonics.
Any TA who is teaching children to read needs to make sure they know exactly how to teach phonics systematically.
This link is a fantastic alphabetic code overview and everyone should have one if they are teaching phonics. Print it out and give it to all the staff in school.
The reading reform foundation, well worth a look
Debbie Hepplewhite's excellent site
Lots of information on learning to read
A fantastic site with lots of materials for teaching children to read, best for one to one support and older children
Letters and Sounds