DS is in Reception, and as far as I can tell he is doing fine. He is enjoying school, and is keen to learn. He is bringing home a mixture of Phonics Songbirds, and ORT books at level 1+ and 2. He gets 3 books a week. Once he has read each book a couple of times he seems to memorise them, and after that just recites them from memory rather than reading as such. To keep it interesting I have been getting him books from the library as well.
Yesterday DH went into town, so I asked him to pick up some new library books, and he came back with books about 3 levels above what DS has been getting from school. DS was keen to give them a try, and was able to read about three quarters of the words. The rest he had a go at sounding out, then I told him what they said, but it was very slow going, and I had to repeat each sentence after we'd gone though it to make sure he understood what he'd read.
My question is, will it help or hinder DS' learning if I carry on with the harder books, or should I stick to the same level the school are sending home? The school seem really good, and I don't want to do anything to accidentally set DS back, when he seems to be enjoying it so far.