Answer:
Because a lot of things have not yet been discovered and questioned as well as there being billions of things that we have absolutely no knowledge about.
The answer is: Pre operational stages.
According to piaget's theory, children will started to recognize and learn to manipulate symbols during pre operational stages.
They will start to understand hand gestures, facial expression, and voice intonation that given by other people.
Models are representations of processes or structures that aid us in picturing or explaining the structure or activity of an issue. Models may help us visualize or explain the structure or activity in question. In process models, the boxes stand for the various processes, and the arrows illustrate how the processes are related to one another and how they flow into one another.
This will be discussed in further detail below.
<h3>What exactly is "
the process model?</h3>
There are many different applications for the word "process model." For instance, the enterprise process is often referred to as the company process model when it comes to modeling business processes.
To summarize, Models let us see or describe processes or structures.
"Process model" refers to a model that depicts how a process works, whereas "structural model" describes mental structures participating in particular processes.
Boxes indicate distinct processes, while arrows demonstrate how they're related.
You may learn more about the process model
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