Question

According to Jean Piaget, what is all learning based?
Writeacher
http://www.google.com/search?q=jean+piaget+theory&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGGL_en___US357

Read widely and carefully.
Deborah
According to Jean Piaget, in what is all learning based?