Consonance and dissonance are subjective perceptions that are reactions of the human ear to whether or not musical intervals sound "pleasing." The physical causes of consonance and dissonance are not as well understood as other subjective properties of sound perceived by the ear such as pitch, loudness, and quality (timbre). What follows is an…

Describes children's reactions to chance and probability in a variety of experimental situations, using four different experiments from Piaget's work, to give a clearer picture of how children approach these ideas. (GA)