I was engaged to the discussion of constructivism several times, Recently, during recent discussions on constructivism, insinghts revealed a relation to the construction of rules of ”Thinking Game.””Thinking Game” seems to me one of the favorite games of intellectuals. The construction of rules for the game is an important issue that the research community must pay. I attempt to tackle the problem of constructing rules from 3 different angles.First, I urged the researchers to make a distinction between devotion to and indulgent with ”Thinking Game.” Second, I argued that both sensitivity and sensibility were indispensable for anyone who tried to embrace the educational fads. Finally, I suggested that the researchers and the practitioners work together to elevate the quality of schooling. In the last section of this paper, ”Coda: the construction of 'Music Garden'?”, I expressed my concern to subvert the established concepts of ”education” and 11 research. ”