Realists emphasize the role of the teacher in the education process. the teacher should present material in systematic and organized way and should promote the idea that one can use clearly defined criteria in making judgments about art, economics, politics, and science. for example, some realists would assert that a work of art, such as a painting, can be evaluated in terms of objective criteria: the kind of brush strokes used, the shading of colors, the balance and quality of the subject matter, and the message conveyed. the same thing applies to the activity of education; one can use certain objective criteria in judging whether activities are worthwhile-for example, the type of material presented, how is organized, whether it suits the psychological makeup of the child, whether the delivery system is suitable, and whether it achieves the desired results.