Ds is in Reception. They have one book per week and aren't allowed to change it before Thursday which is book changing day. The thing is though the guided reading sessions in school use this same book every time, as well as is reading it at home. Does this sound right to you for a reception class. Ds is fluent after reading the book twice (and has good understanding) so he's getting very bored with reading the same thing over and over.
Also, if a child forgets their book on Thursday they don't get the book for the following week at all (thought maybe it could be kept in school or given once the old book is returned) but no they just miss out on that week's book all together.
Does this sound right to you? Perhaps guided reading isn't much of a thing in Reception?