Examined the effects of Piagetian-like tasks' characteristics on the performance of those tasks by different age group students. Indicates the method of task presentation had an effect only on young students' performance, while numerical content had an effect on the majority of students in all grades. (Author/CW)

Provides a glossary and bibliography which includes a listing of the following: general reference books, field guides, children's books, films, filmstrips, slides, videos, coloring books, games, posters, software, activity sources, where to get more information, Ranger Rick Ocean Index, and a metric conversion chart. (RT)

Provides information on (1) a general indication of change in the cognitive structure of students associated with chemical comprehension; (2) the comparison of clusters of concepts; and (3) a graphical representation of the links among concepts. Argues that constrained word associations serve as a useful tool for mapping aspects of cognitive…

Uses simple models to illustrate the principles of this genetic method of mapping gene loci. Stresses that this system enables a practical approach to be used with students who experience difficulty in understanding the concepts involved. (CW)

Reported are viewers' comments of some recently broadcasted science education programs in Great Britain. Explores the impact of these programs on children in the classroom, the pupils' appreciation and what the children learn. Synthesizes these opinions into recommendations for successful science education broadcasting. (CW)

Outlines the role of the main organisms involved in woodland decomposition and discusses some of the variables affecting the rate of nutrient cycling. Suggests practical work that may be of value to high school students either as standard practice or long-term projects. (CW)

Describes a study of perceived difficulty of chemistry courses among secondary school and college students in Kenya. Concludes that organic chemistry may not be as difficult as many people believe. (CW)

Discusses some of the major research in science education published during the last 10 years in order to raise some of the methodological issues involved. Illustrates the progress that has been made along the path toward a science of teaching science. (CW)

Discusses the incorporation of environmental chemistry topics into the traditional high school chemistry curriculum. Describes and provides lesson plans for the sulfur cycle and acid rain, and radioactivity and nuclear energy. Considers possible laboratory experiments. (CW)

Presents investigations to explore the substrate specificity, pH, concentration, and temperature relations of an enzyme with only inexpensive commercial rennet and basic laboratory equipment. Describes how the activities were carried out with a group of 15-year-old students. (CW)

Models the ideas of children's misconceptions and subsequent acceptance of conventional scientific thought on the simple cusp of catastrophe theory. Demonstrates one theory of the forces which are necessary to change a misconception to a scientific concept. (CW)

Describes a demonstration of a practical application of electrochemistry. Discusses the set-up, materials, and theatrical attributes of this demonstration. (CW)

Examined are the results of three studies completed at the University of Northern Iowa on the status of earth science teaching in Iowa over a ten-year span and the characteristics of exemplary teachers. Considered are course offerings, teacher backgrounds and preparation, instructional materials, and laboratory and activity time. (CW)

Presents several strategies to teach the reactivity of metal elements. Stresses the safety aspects of these demonstrations using an overhead projector and a plexiglass safety shield. Lists some of the essential learnings desired in these activities. Includes a chart of the activity series of metals. (CW)

Reviews the Teacher-in-Inner-Space (TIS) program of the Hawaii Science Teachers Association (HaSTA). Discusses the selection of winners and runners-up. Describes the dive made on June 9, 1986 in cooperation with the Hawaii Undersea Research Laboratory (HURL). Lists the three goals of the TIS project. (CW)