Abstract: The invention refers to a support system for a board with surface configured for writing comprising a tripod (1), three tethers (3) and a connector (4); a tray (2), which includes at least one tripod connection element (1); a clamp (7) configured to connect with said board with surface configured for writing; and a guide rail (19), which is configured to connect to said clamp (7). The invention also refers to a board with surface configured for writing connected to said support system and the associated preparation method. The guide rail enables the use of sheets of paper sized larger than the board. The invention may be furnished with individualized components, facilitating the replacement or acquisition of individual parts.