Rafiath Rashid Mithila Instagram – In my University library, Ayra met Mr. Jean Piaget, the father of child psychology and known for his theory of cognitive development in early childhood, who’s theory I not only had memorized by heart but also applied them on Ayra when she was between 1 to 3 years old and I was doing my Masters in Early Childhood Development. 😁😁 #ayra_ar_maa #phdlife