The materials are carefully sequenced to break down each step for the child, and to make it possible for him/her to feel success at each step.
The materials progress from the concrete to the abstract, appealing first to the child’s senses.
The materials are manipulative, based on the fact that a child learns by doing.
The materials are designed to isolate the difficulties of the concept being learned.
The materials provide a control of error.
The materials emphasize reality.
The materials are attractive, thus inviting the child to want to be engaged with them.