Similarly, the process-oriented view passes through the three stages of conceptual, organizational and operational.

It didn't reach operational stage, and the name is not official.

In Piaget's model of intellectual development, the fourth and final stage is the formal operational stage.

Most students, including those still at the concrete operational stage, will quickly answer that the father's height must also double.

The concrete operational stage is characterized by the developing ability to use logic and to consider multiple factors to solve a problem.

However, a child in the concrete operational stage is not able to differentiate between these mental constructs and reality (their experiences).

For now concentrate on getting number one into fully operational stage.

Only the Hs 293s reached the operational stage.

But no evidence was presented to show that any plot had reached an operational stage.

Subsequently, she provided track on other types of missiles as they proceeded through their development and operational stages.