One of the largest disadvantages to small classroom size is cost. Smaller classroom sizes in a school district means adding additional teachers and building additional classrooms, and few school districts have the resources to fund additional classrooms or teachers. Also, many experts have argued that it is far better to put a fabulous teacher in a large classroom than put an ineffective teacher in a reduced-size classroom just to fit the smaller-class-size formula, according to Kevin Simpson in "The Denver Post." That would be a disservice to the very students the district is trying to help