Although most idealists claim that they are opposed to the used of reading material for indoctrination, they do not see why reading material cannot, while it is helping a student learn to read, encourage thinking about ideas involving humanness, truth, and fair play. Although few books and materials for children express such ideas, idealists still believe that the teacher should encourage a consideration of such ideas in the classroom; a teacher should help students explore curriculum materials for ideas about the purposes of life, family, the nature of peer pressures ,and the problem of growing up.