Describes alternate methods of schematically representing genetic lines of descent, and illustrates the different patterns obtained with random mating, line breeding, parthanogentic males, cloning, and grafting. (AL)

Answers to questions in a grade 11 physics examination were analyzed to provide information on the cognitive development of Australian science students. Data from questions concerned with volume, mass and weight, levers and proportion, speed and velocity, acceleration and relative speed are compared with Piaget's findings: many of the students do…

Uses photomicrographs to illustrate the advantages of simple phase optics for microscopy in school biology teaching. (AL)

Provides a list of birth dates of scientists born in January. Describes the use of these dates, displayed with the birthdays of students, to stimulate interest. (AL)

Reports the findings of evaluations of the trial versions of the course, concentrating on the aspects that appear to have significance for biology teaching in a wider context." (AL)

Study examined the influence of the incorporation of set induction into teacher's instructional strategy upon pupil achievement, retention, and assessment of effective teaching. Eighteen pre-service teachers were used with half receiving instruction on set induction. Results indicated set induction is an important variable in teacher effectiveness…