typology专业术语.doc

Acceptable Use Policy (AUP) An agreement among students, parents/guardians, and school administrators regarding appropriate use of the Internet. Accommodation The cognitive process of modifying a schema or creating new schemata. Acetate A transparent plastic sheet associated with overhead projection. Advance organizer An outline, preview, or other such pre-instructional cue used to promote retention of verbal material, as proposed by David Ausubel. Also referred to as preinstrucion1 strategies. Affective domain The domain of human learning that involves changes in interests, attitudes, and values and the development of appreciation. Alignment Establishing visual relationships among elements by placing their edges along the same imaginary horizontal or vertical line. Alt-tag Alternative textual description that identifies a graphic or an image; used when designing computer images and screens for visually impaired users. Analogous colors Any two colors that lie next to one another on the color wheel. Contrasted with complementary colors. Animation A film technique in which the artist gives motion to still images by creating and juxtaposing a series of pictures with small, incremental changes from one to the next. Aperture The lens opening that regulates the amount of light entering the camera. Arrangement The pattern or shape into which the elements of a visual display are organized. Artifact Student-produced materials such as writings, videos, and multimedia presentations. Assimilation The cognitive process by which a learner integrates new information into an existing schema. Asynchronous Not at the same time. Attachment Electronic files (documents and graphics) sent along with e-mail messages. Audio A type of media composed of anything a person can hear (e.g., voice, music, mechanical sounds, noise). Audio-graphic teleconference A teleconference involving Voice plus graphic display. The graphics may be transmitted by a fax machine or electronically by