Concrete Operational Stage
1. Seriation: ability to sort objects in an order according to size, shape, or any other characteristics
2. Transitivity: ability to recognize logical relationships among elements in a serial order
3. Classification: ability to group objects together on the basis of common features
4. Decentering: ability to take multiple aspects of a situation into account
5. Reversibility: the child understands that numbers or objects can be changed, then returned to their original state
6. Conservation: understanding that the quantity, length, or number of items is unrelated to the arrangement or appearance of the object or item
7. Elimination of Egocentrism: the ability to view things from another’s perspectives
8. Performs Operations: combining, separating, multiplying, repeating, dividing, etc.