In Good Condition - thick Wirebound Book 
 
This book used worktasks for children as a form of manipulative activities built around a single concept for learning that concept.  Through active involvement with the materializastion within the material.  Then with conversation with the teacher, the child woudl have an opportunity to ask questions to help them become aware of patterns and relationships in their intunitively observations but could not clear define.
 
The child called the activities their 'work' or their 'jobs'.
 
Looks at topics:
Language - Perception, Matching, Classification, Sound & Letters
Mathematics - Sets, Number Sequences, Combining and Separating Groups & Relationships
Why and How