当小镇孩子与上海北京孩子在一起上哲学课，发生了什么

Debate is one of the few school activities that is not sensitive to family income: the entry cost is a voice and a willingness to be contradicted. Dr Zhihao Yan describes a year of online philosophy classes that deliberately mixed children from Chinese county towns with children in Shanghai and Beijing. He follows two of them. A Beijing ten-year-old whose questions had outrun her family found peers a thousand kilometres away. A class monitor from Huidong, well drilled in prepared public speaking, needed two months to unlearn it — live argument means being interrupted, answering on the spot, and being wrong in front of people. He also notes an effect that surprised him online: the children who rarely speak in a physical classroom often speak most freely on screen. His framework for the work is what he calls the three horses of children's philosophy — original puzzlement, a philosophical text, and a community of enquiry.