Hi Pizzahutlover:
I agree with a lot of what people are saying. I absolutely understand you're excited about your PFB starting school and like any parent want them to get off to a flying start - but as my brother who is a primary teacher says - this is a marathon not a sprint.
I'm afraid I agree with many who say it probably is best to wait until school starts (which is really only just over a fortnight away now).
What you can do now over the summer:
Read to your DC as much as possible
Visit local library (maybe attend activities, story reading sessions).
Talk about book parts/ sturcutre: Author, illustrator, cover, title page, introduction, etc....
Discuss the story as you read it.
(Lots of great early reading ideas on Oxford Owl: www.oxfordowl.co.uk/home/reading-owl/reading
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Once school has started:
Like olibeansmummy suggested - wait until school starts. Give them a few weeks to settle children in and assess them, but most schools usually have a meeting for Reception parents to explain how they teach letter sounds and learning to read. They also tend to have regular reading mornings where parents can come in (and again this is a nice time to have a brief word with the teacher/ TA).
If nothing has been said by your first parent/ teacher meeting (usually in October around here) - well that's the point to ask. Certainly if you haven't had any information by November, ask the teacher/ send in a note to the teacher.
Once you know what system they're using and are aware of the amount of homework/ resources they are providing then you can decide whether you need to do additional work at home or not. Regardless, keep up the reading at home. Don't just limit reading to books sent home from school, and don't feel you have to read the school book every night (especially if you have the same book all week & DC is getting 'bored' with it/ doesn't like the story).
HTH