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)

Compared transactions in junior/senior high biology classes and indentified relationships between classroom conditions, lesson format, and instructional activities. Found instruction characterized by inquiry-oriented, laboratory-based learning led and guided by the teacher, with only medium dependence on the textbook. Also found the Structured…

Described is a study of 147 students that indicated a high proportion of students did not understand the concept of limiting factors. Textbook presentations that create problems are discussed. Strategies which may be more effective in teaching the concept are suggested. (CW)

Describes a study to diagnose grade 8 (n=185) and grade 10 (n=170) Israeli students' difficulties in causal thinking while studying biology. The two main difficulties found are (1) inability to organize events according to their correct temporal sequence and (2) inability to identify an event that had been caused by another event. (MDH)