This article presents a practical model for a biology classroom discussion on evidence and inference, and on changes that have taken place in accepted ideas of what constitutes reliable evidence. (EB)

A laboratory experiment that involves solving problems with conflicting evidence or inconsistent data. The experiment gives students opportunities to reason as scientists. (EB)

A bioethics unit aimed at taking biology out of the laboratory and classroom and into the world. An experience in which students not only begin to understand reasons for making decisions, but also understand how values change. (Author/EB)

A transdisciplinary course in marine biology and oceanography is described. The course was conducted during an experimental educational venture in which the school calendar was organized into two shortened semesters and a one-month miniterm in January. The field experience involved activities in the Florida Keys during the miniterm. (EB)

A method of preparing a special dissecting tray to be used with transmitted light as well as reflected light is presented. It may also be used with an overhead projector to illustrate some skeletal structures in vertebrates. (Author/EB)

Described is a program developed and used by two teachers to individualize instruction and overcome student apathy in their biology classes. A book, "An Approach to Teaching Biology, Student Guide to Learning," was developed to supplement the textbooks used. The physical rearrangement of the classroom was also considered imperative. (EB)

Described is a method of maintaining satisfactory levels of humidity in mobile green houses and environmental chambers, without the use of expensive humidifiers. (Author/EB)

Described is a method of teaching introductory college biology that utilizes original research papers. Course materials facilitate student understanding of biologists as people and understanding methods used by scientists to uncover new knowledge. (EB)

Describes the tasks of the science educator and upholds the attempts at establishing a scientific base for education. (LS)

Suggests that the anatomy of a green pea be studied as the culminating laboratory activity of a botany unit in a biology course. (LS)

Describes a technique for making fairly good quality ocular micrometers at low cost for measuring microscopic specimen size in biology courses. (LS)

Suggests ways to foster adaptability and encourage diversity in the classroom so students can tackle problems of overpopulation and lack of future consciousness and citizen participation. (LS)

Analyzes several factors in an impact study of Biological Sciences Curriculum Study (BSCS) and states that its major impact has been to make curriculum change respectable. (LS)

Suggests that preservice teachers who develop an active interest in project work will continue to exploit it and feel self-confident to master new approaches to biology and to the techniques of teaching. (LS)