In Piaget's theory what is social experience and how does it contribute to our development of schemes?

Social experience is the process of interacting with other people (Piaget, 1952, 1959, 1970, 1980). Social experiences allow us to test our schemes against those of others. When our schemes match, we remain at equilibrium; when they don't, our equilibrium is disrupted, we are motivated then to reestablish it and adjust our thinking. Thus, our development advances (How, 2009, 2010; Siegler & Lin, 2010).