The development of the audiotutorial model from an alternative instructional system to a useful research tool is discussed. Examples of early research and its limitations are included as well as later studies on the applications and adaptations of the audiotutorial model. (MA)

Describes the application of simulation as a teaching tool which provides a means of understanding living organisms by representing only the essential aspects of selected biological processes which might not be readily visualized. (BR)

Presents a hands-on model that can be used to illustrate basic concepts such as carrying capacity, annual turnover, compensation, and diminishing returns. (MA)

Presents a mechanical model for an ecology laboratory that introduces the concept of optimal foraging theory. Describes the physical model which includes a board studded with protruding machine bolts that simulate prey, and blindfolded students who simulate either generalist or specialist predator types. Discusses the theoretical model and data…

Describes how to use the distinctive properties of osazone formation in conjunction with molecular model construction to demonstrate the relationship between the three-dimensional structures of simple sugars and the shapes of crystals they form. (BR)

Points out that the components of a corporation are analogous to structures in cells and that this analogy can be an effective teaching tool to clarify this scientific concept. (LS)

Described is how to build a solar furnace model. A detailed list of materials and methods are included along with diagrams. This particular activity is part of an audiotutorial unit concerned with the energy crisis and energy alternatives. (MA)

Describes how to use paper analogies as models to illustrate various concepts in biology, human anatomy, and physiology classes. Models include biochemical paper models, protein papergrams, a paper model of early brain development, and a 3-D paper model of a eukaryotic cell. (AIM)

Describes construction of a model ecosystem using a 10-gallon aquarium with a sand, water and air interface. Pesticides are placed on sorghum plants grown on the terrestrial portion. After 30 days, movement of the pesticide is traced using radioisotope techniques, from terrestrial to aquatic organisms. Details for calculating concentration factors…

Presents a model for teaching the principles of evolution. The model presents three major factors that direct changes and affect an individual's fitness. Uses and adaptations of the model are suggested. (Author/SA)

A paper model which is designed to give students a hands-on experience during lecture and blackboard instruction on DNA structure is provided. A list of materials, paper patterns, and procedures for using the models to teach DNA structure and replication are given. (CW)