Concrete Operational Stage

From AGIRI.org

As compared to the Infantile Stage and Pre-Operational Stage, more abstract logical thought is applied to the physical world at this stage. Among the feats achieved here are: reversibility--the ability to undo steps already done; conservation--understanding that properties can persist in spite of appearances; theory of mind--an understanding of the distinction between what I know and what others know. (If I cover my eyes, can you still see me?) Complex concrete operations, such as putting items in height order, are easily achievable. Classification becomes more sophisticated, yet the mind still cannot master purely logical operations based on abstract logical representations of the observational world.

Relationship to Uncertain Logic

In the theory of Developmental Stages of Uncertain Logic Based AI Systems, the Concrete Operational stage may be characterized as a stage where the logical inference faculty operates as an Adaptive Control System, in the specific sense that the "pruning function" used to control Forward Chaining Inference and Backward Chaining Inference utilizes knowledge gained from experience carrying out inferences in various contexts.