What is bp?
Diary writing is on the curriculum, so I imagine anything that encourages both reading,,all be it at a very fun simple level, and writing a diary, is going to be advantageous.
Before anyone says anything, I know there are much higher quality diaries to read, but not many contemporary works that children can truly relate to. Two of my boys read and enjoyed the doawk full set a few years back, funnily enough they are now reading 'bunker diary' together, a great read, but I have to say doawk scored highest with them.
At least, the English department at my DS' school is doing a great job. I am grateful for that. English teachers over there would understand what I am talking about!!
Our English dept say, "read read read, anything they enjoy, any genre aimed at any age, they will choose more advanced books when they are ready." We had a whole evening after school with them saying just that. I went right out and bought my son the 'how to train your Dragon' latest book he wanted, as I had been saying he was too old for it.
They are red hot on spag and writing though.