Fitzroy Big Books 21-30 are exactly the same as Fitzroy Readers 21-30, but each page is A3-size and the print has been further enlarged to be easily readable from metres away.
Big Books 21-30 are perfect for teaching groups who have already used the earlier Fitzroy Readers or Big Books. A new sound (digraph), such as th in thin, is introduced with each of the Big Books 21-30. The teacher can point to the words in the story that include the new sound as the students sound them out together.
The list of some more words we can now read, at the back of each reader, presents many words that use the new sound. This list is great for group participation.