Research and practice have recognized the importance of informal learning--a specific type of active learning--for higher education contexts. University students learn not only in formally organized courses, but also in a self-directed and intentional way from fellow students, through trial and error, and by reflection. However, there has been a…

This article reports on a study conducted to investigate the development of abstract thinking in preschool children (ages from three years to four years old) in a nursery school in England. Adopting a social influence approach, the researcher engaged in "close listening" to document children's ideas expressed in various representations…