books to help children understand speech disorders?

[mummyloveslucy]

Hi, my 4 year old daughter has a severe speech disorder and the children at the nursery are starting to ask "Why can't she talk properly?".
I wondered if there are any books aimed at young children to teach them about speech disorders.
If you've heard of any, please let me know as It would be good for my daughters teacher to read it to her class. Thanks.

[mummyloveslucy]

bump.