Aspects of practical assessment such as question design and management of the assessment are discussed. Reference is made to some of the problems and to the possibilities for innovation as a result of implementing practical assessment of the kind required by the General Certificate of Secondary Education examining groups. (CW)

Discusses variables which determine the strategies animals use to organize their lives. Describes advances in understanding animal behaviors. Shows how game theory has helped to explain the existence of alternative behavioral strategies and the constraints under which organizers exist. (Author/CW)

Describes a five year research project in plant ecology by successive teams of students. The aim was to identify environmental factors which were determining the distribution of the vegetation on a pitheap. Includes descriptions of vegetation, soil properties, and computer assisted analysis of results. (Author/CW)

Outlines an adaptive framework for the study of plants and their pollinators in which both partners in the ecological relationship are seen as maximizing fitness through efficient use of the other as a resource. Suggests experimental projects to examine the validity of these assumptions giving an evolutionary emphasis. (Author/CW)

Describes the Oxford Certificate of Educational Achievement (OCEA) and the principles on which it is based. Discusses ways in which biology teachers can develop their confidence and proficiency in making assessments of process-based work. Stresses the advantages that a scheme such as OCEA can bring to a biology department. (Author/CW)

Discusses the rapid increase in interest in biotechnology. Emphasizes the implications for inservice training of teachers. Describes a means of producing a modular course which may be flexibly used for inservice work. Focuses on improving the background knowledge of teachers, giving relevant practice experience and considering various teaching…

Discusses responses to student questionnaires used to identify the effect of instructional strategies on study practices and attitudes towards biology. Concludes that while organized teaching has a stronger effect on study skills, teaching by enquiry has a stronger effect on curiosity and interest. (Author/CW)

Describes a simulation of the results of real experiments which use different strains of Escherichia coli. Provides an inexpensive practical problem-solving exercise to aid the teaching and understanding of the Jacob and Monod model of gene regulation. (Author/CW)

Presents experiments using wild birds as predators and pastry as prey and colored stones as background to demonstrate natural selection. Describes the exercise as an exercise in simulating natural selection. (Author/CW)

Describes a simple method for measuring respiration, net photosynthesis, and compensation points of plants in relation to light intensity. Outlines how the method can be used in teaching physiological adaptation. Includes a set of the experiment's results. (ML)

Proposes that teachers possess some awareness of the history and philosophy of science and epistemological understanding of the nature of the subject area. Offers perspectives on the role of observation; on hypotheses, theories, and laws; and on models in biological education. (ML)

Reviews the main principles of interfacing and discusses the software developed to perform kinetic data capture and analysis with a BBC microcomputer linked to a recording spectrophotometer. Focuses on the steps in software development. Includes results of a lactate dehydrogenase assay. (ML)

Presents a rationale for teaching inquiry skills and describes a learning module which was designed to develop inquiry skills and provides a realistic view of the nature of scientific research for secondary science students. Explains the module's evaluation procedures and results. (ML)

Reviews findings from three diagnostic studies which focused on the problem of tautological explanations. Includes a report on a teaching intervention strategy which resulted in the improvement of pupil performance. Suggests that avoidance of tautology can be taught. (ML)

A hair dryer, plastic funnel, and microscope slide can be used for predicting pollen counts on a day-to-day basis. Materials, methods for assembly, collection technique, meteorological influences, and daily patterns are discussed. Data collected using the apparatus suggest that airborne grass products other than pollen also affect hay fever…