Intellectual honesty, on the other hand, is concerned with the conscious act of truthfully reporting observations. Teachers have to ask themselves how they reward honesty in their classroom. In the laboratory, for instance, do the pupils know the right answers to report regardless of their actual sense data? The value of open-ended experiences for instructional purposes is that they are more like those of the scientist at the frontier of knowledge where the answers are not yet known. Science could not be the cumulative enterprise that it is if it were not for the objectivity and honesty of its practitioners.