Children like a leaf of paper white, They will give you back everything you have given to them. From childhood to maturity, it is a cumulative process, experiences, contributed you and me (us). We attempts in a pure and white space in mind, began to discuss counter-centric, then discussed the relations of boundary in the prototype of classroom. Behind the boundary, Hide the black space of many permanency (space), or temporary of black space (temporary classrooms). Counter surrounded by permanently of white space and temporarily of black space, spatial boundaries will be changed with time. For the statement, what we want to challenge is a NON-angle, black and white space which changing all the time. We try to vague the sequence of space, make the aisle able to be a fraction of classroom , and redefine the ever-change space (activity) , establish the whole classroom together. White space like the Staff Notation, kid and color are notes general, lightly moving dance. It is Classroom, as well as playground.