Describe Piagets four stage of cognitive development?

Answer 1

He had very few subjects, but all were longitudinal studies. Primarily, he studied his own three children focusing on their cognitive abilities and developed his theory.

Answer 2

                    

Answer 3

He had very few subjects, but all were longitudinal studies. Primarily, he studied his own three children focusing on their cognitive abilities and developed his theory. sensorimotor development and self-awareness; representational thought, including by means of language; classification of objects by their similarities and differences and the emergence of elementary logical abilities; and advanced reasoning, including manipulation of abstract ideas. 

Answer 4

I did not know anything about your question so I googled it.

https://www.google.com/search?q=identify+and+brief...

If you have done any research on this, you probably have already seen these sites.  If you haven't done any research, this is probably a good place to start.

Answer 5

This has it all.

https://www.medicalnewstoday.com/articles/325030#s...

Answer 6

you might be able to find that info online