This project involved the use of two small, closely matched non-majors introductory biology classes to test the use of the Jigsaw method of teaching vs. a passive, instructor-oriented model of teaching. In this study, the Jigsaw method was used as a jumping off point for the teaching-learning of the material. Students were to learn the concepts of…

A collaborative effort between biology and communication instructors to facilitate speaking skills for senior biology majors resulted in improved organization, clarity and confidence in delivering an oral scientific presentation. But this instruction also favorably impacted students' scientific writing. This benefit seems best attributed to…

Conditions producing stress are present in all colleges and universities. In this paper we report on an investigation utilizing heart rate as an indicator of stress in students when participating in activities encountered in a college classroom or laboratory. The activities included presenting an oral report, taking an exam, and participating in a…

We have developed a laboratory course that demonstrates how evolution can be taught as a participatory, investigative science at the undergraduate college or advanced secondary high school level. The course emphasizes the applied importance of evolution to areas such as medicine and agriculture. Because many instructors face budgetary or other…

There were several changes in the laboratory teaching program in the Biological Sciences at Florida International University (FIU) between 1993-1994. The underlying goal was the improvement of the amount of material learned and retained by the student, but these changes showed little positive improvement. It was deemed necessary for FIU to…

Program-level assessment of the biology curriculum at a small liberal arts college indicates progress in the development of communication skills and content knowledge. The authors propose a mechanism to provide more research opportunities for students, giving them all the tools necessary to do science. (Contains 5 figures.)

The mechanism by which air enters the mammalian lung is difficult for many students of physiology. In particular, some students have trouble seeing how pressure can be transmitted through a fluid such as the intrapleural fluid and how the magnitude of that pressure can change. A Cartesian diver, an old-time child's toy, may be used as a visual aid…

The paper presents a teaching regime and evaluation criteria for a general education course in biology. The purpose of the course is to provide students with biological information to help them understand problems facing humans and some of the social and ethical aspects of these problems. Using input from students concerning what constitutes a…

In our study, we focused on the conceptual understanding of the concepts and processes presented in the first lectures of an introductory course in cellular biology for biology majors. The study topic we considered was, "the structure of DNA and the functions of nucleotides". One hundred and eighteen students were asked to prepare concept maps…

This laboratory exercise affords students a hands-on experience learning about traditional dyes, fiber strength, and paper making. It is economical, simple to prepare, provides satisfactory results, and is student friendly. Dyes were extracted from plant leaves, stems, roots, and fruits. Hard-boiled eggs were place in the dyes for 15 minutes to…

A major challenge in teaching any college level general genetics course including a laboratory component is having the students actively understand the research part of an experiment as well as develop the necessary laboratory skills. This laboratory experience furthers the students' knowledge of genetics while improving their laboratory skills.…