A learner-centered extension approach was used to develop visual materials to teach Ghanian farmers about weed control. The method was inexpensive, easy to transport, and suitable for a low-literate audience. Evaluation revealed the need to train extension staff in use of the materials. (SK)

The construction of visual and manipulative aids, clear resin blocks with root-canal-like spaces, for simulation of root canals is explained. Time, materials, and techniques are discussed. The method allows for comparison of canals, creation of any configuration of canals, and easy presentation during instruction. (MSE)

Provides instructions for making and tips for using laptop flannel boards as portable and individual teaching tools. (MG)

The technique of reconstructive elaboration is applied to content area learning, with illustrations and discussion of classroom practice. The purpose of the technique is to make content more familiar or more meaningful and link information to be remembered. (MSE)

Discusses browsing in the particular context of visual and multimedia (e.g., videodisc) information databases and describes a working prototype system based on a fisheye view of documents in their context. Topics discussed include selecting and presenting information, exploratory access to information, artificial intelligence, user needs, and…

Presents an activity that involves drawing pictures to collect data, conjecturing a recurrence relation, and solving the relation using geometric series and partial fractions. (MKR)

Uses rectangular models for illustrating products of numbers to solve mixture word problems. (MKR)

Describes differences between engineers' and physicists' views of free-body diagrams (FBD). (PR)

Discusses the rationale and advantages of utilizing double slide projection as a visual presentation technique for lectures and seminars. Provides 12 tips for proper implementation of this technique in conjunction with 10 possible uses and 3 methods of controlling the slide changes. (JJK)

Described are how pictures can combine aspects of naturalistic representation with more formal shapes to enhance cognitive understanding. These "diagrammatic" shapes derive from geometrical elementary and thereby bestow visual concreteness to concepts conveyed by the pictures. Leonardo da Vinci's anatomical drawings are used as examples…

Discusses methods of browsing in online public access catalogs (OPACs) and describes one method that uses information pertaining to the physical description of books from MARC records to simulate images of books on a library shelf. Electronic browsing through MARC is discussed, and methods of enhancing OPACs are reviewed. (51 references) (LRW)

Argues that the aggregate good is a powerful pedagogical device in economics. Uses a simple graphical analysis that demonstrates to the student the concept of an aggregate good, that preferences can indeed be collapsed from many goods to two. (DB)

Asserts that technical writing students can have creative fun in following a successful teaching strategy using Tinker Toys. (PRA)

Discusses the problem of using graphics in international documents, since graphics are not universal unless expressly designed as such. Discusses how to plan international graphics, pitfalls to avoid, wordless instructions, and text. Offers a checklist for cultural and national differences. (SR)

Twenty-two readers (ages 10 to 35) with scotopic sensitivity parsed sentences under scotopic correction (using colored transparent overlays) and control conditions. Although eye movements suggested enhanced parsing, comprehension scores were not significantly improved with correction. (DB)