This book consists of 63 activity pages which teaches in simple steps attributes:
Big - Little
Long - Short
Empty - full
The book has been designed so that there are not un-needed distractions on the page so it will suit children that also have more complex learning needs such as Autism (designed this way).
Each step is small enough that it encourages learning the skill to a mastery level rather than allowing for regression later on.
This has been used with children with mainstream children and those wtih:
Autism, Down Syndrome, CAPD, ADHA, Dyslexia and Dyspraxia to name a few.