This discussion of factors to consider in planning a successful public presentation highlights multimedia presentations; verbal skills; proper use of visual materials; an explanation of vision measurements; lettering size and style; screen size; level of illumination; and machine handling. (LRW)

Discusses the use of ratio diagrams, which plot the calculations of equilibrium concentrations of the species of the carbonate system. Provides examples to describe how these diagrams can be used to illustrate the behavior systems of interest in volumetric analysis, where absorption or loss of carbon dioxide takes place. (TW)

To investigate the effectiveness of integrating abstract and realistic visualization, the effectiveness of four treatments was measured for: (1) facilitating student achievement of different kinds of educational objectives; (2) students possessing different levels of student ability; (3) externally paced and self-paced methods of instruction; and…

Describes "The Kinetic Karnival of Jearl Walker," six 30-minute television programs. Programs focus on: forces/collisions; rotation; fluid flow and friction; viscosity; Leidenfrost effect; and the science of cooking. Teacher's manual containing description, class preparation, questions, and bibliography are provided with each program (available in…

Historically, research has shown that a reader's recall of ideas from text is enhanced when the reader uses relations among concepts to organize information. Text structure is a term used to describe the various patterns of how concepts within text are related. Knowledge of text structures assists a reader to comprehend text by allowing the reader…

This study investigated the effects of audio, animation, and spatial ability in a computer-based instructional program for biology. The program presented instructional material via test or audio with lean text and included eight instructional sequences presented either via static illustrations or animations. High school students enrolled in a…

Cognitive theories normally applied to listening comprehension are applied to the use of visuals with mass media broadcasts for second language instruction: the visual image as advance organizer, as reinforcement of concrete information, and as an association with abstract information. A related study in Germany is cited and illustrated. (MSE)

Describes class projects involving astronomical photography. Includes a description of how to make an astrocamera or convert a pocket camera into one suitable for astrophotography, film choices, and phenomena to photograph, such as star trails, meteors, the sun, and the moon. (DS)

Describes and evaluates the effectiveness of some optical media enabling visually impaired students to become active learners in the science classroom. (SK)

Outlines procedures for using some photographic techniques to start a black and white slide collection. Instructions are given for: (1) necessary equipment and materials; (2) photographing images such as photos, charts or drawings; (3) developing the film; and (4) setting up the filing system. Photographs and drawings illustrate the process. (AMH)

Asserts that legal mandates increase the probability that postsecondary instructors will have blind and visually impaired students in their classrooms. The graphical and symbolic notations used in economics courses present special problems for these students. Recommends and describes the usage of tactile graphs and raised line drawings. (MJP)

An interactive version of an educational radio program can be developed quickly and easily with a main menu interface that takes into account physical classroom conditions; interactive learning interfaces that accommodate eye and vision requirements of children; and a story interface design informed by the "container" metaphor and the 2-D…

Discussed is the importance or unimportance of including visuals and illustrations in science textbooks. Characteristics of visuals, misconceptions, individual student differences, publishers views, and recommendations to science teachers when choosing science texts are included. (KR)

An approach to teaching the properties of the elements and their arrangement in the periodic table is suggested. Discussed are symbols for the elements, format of the table, and coding the properties of the elements on the table. (CW)

A brief history of several of the early forms of the periodic table of the elements are discussed including those of Mendeleev, Meyer, Hubbard, Gmelin, Von Antropoff, and Strong. A more every-day-life form of the table is presented. (CW)