Described is a science program in Hawaii for high school students in which students are trained in a variety of tasks at a local zoo during the morning hours and then return to campus for coursework. The program offers opportunities to develop responsibility and self-esteem. (SA)

Summarizes what is known about the effects of marijuana use on health. The topics included are its chemistry and the metabolism; the effects of acute intoxication on learning, memory, intellectual performance, driving, and other skilled performances; and effects on lungs, brain, heart, and other systems. (SA)

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 method is described for measuring differences in grading that is free from the effects of individual student abilities and teaching quality. The analysis locates teachers on a continuum scale from "hard" to "easy" and enables the identification of possible extremes in grading that might manifest themselves in unfair treatment of students. (JMD)

Presents the procedures involved in conducting a photochemical experiment intended to provide undergraduates with exposure to the synthetic advantages of organic photochemistry. (Author/SA)

A three-point linkage system in tomatoes is used to explain concepts of gene mapping, linking and statistical analysis. The system is designed for teaching the effective use of statistics, and the power of genetic analysis from statistical analysis of phenotypic ratios. (Author/SA)

Included are suggestions for ways to incorporate the teaching of language skills into middle school science courses. Listed are communication skills that overlap in English and science. Grading methods and writing assignment topics are described. (CS)

Emphasizes how to choose visuals that will best illustrate ideas or relationships in teaching science, when to present real objects, and how to use pictures in assessing children's comprehension. A review of literature related to this topic is included. (SA)

Five components are presented that should be included in developing elementary science inquiry centers. Classroom management and initiating the centers are also discussed. (SA)

A lesson from a physics textbook for secondary students was redesigned in three versions and given to 600 students. Results of achievement measures suggested that one of the experimental versions (which stressed the visual aspects of the printed page) was superior to the standard and the other experimental versions. (GT)

Describes a technique for the laboratory culture of Eucyclops agilis using Euglena. Details of the life cycle are given, and suggestions for its use in laboratory practicals, and in investigations with sixth-form (16 to 18 year-olds) and college students in the United Kingdom. (Author/HM)

Presents the Award Address for the 1979 American Chemical Society Award in Chemical Education. Discusses teachers and learning situations which made a difference in the recipients' schooling and the significant attributes of teachers and techniques of teaching that stand out as lessons for would-be teachers. (BT)

Describes a laboratory demonstration in chemical equilibrium using ferric chloride and ammonium thiocyanate that would serve as a useful basis for an inquiry investigation. (BT)

Describes a programed, independent study, college level, general chemistry course designed to develop good technical laboratory skills with no attempt made to relate laboratory experiments and classroom topics. A list of experiments used and a sample laboratory examination are included. (BT)

Presents a model by which teachers can plan science activities for unmotivated students. The student-centered curriculum is briefly outlined with references and a variety of teaching materials are listed. (SA)