Testing strategies centered around open-ended assessments are generally thought to result in deeper learning compared with close-ended questioning. However, the time requirements involved in grading open-ended assessments on exams often limit the feasibility of using such assessments. This article presents an index card questioning strategy…

The genome projects of the past decades have created extensive databases of biological information with applications in both research and education. We describe an inquiry-based exercise that uses one such database, the National Center for Biotechnology Information Influenza Virus Resource, to advance learning about influenza. This database…

Primary research articles discuss aspects of scientific inquiry that are important in understanding the nature of science. Yet, most introductory science courses use textbooks that ignore the scientific process; opportunities for explicit discussion of the nature of science are lost. In Hampshire College's science program, students read current…

Case study teaching had a long tradition in law and business before it made the jump to medical school education in the form of Problem-Based Learning (PBL) in the 1970s. Today, both the University of Delaware's Clearinghouse and the University of Buffalo's National Center for Case Study Teaching in Science (NCCSTS) have hundreds of cases and…

To improve students' retention rates in general chemistry, online homework was introduced into our curriculum. Replacing quizzes directly by online homework significantly improved (p less than 0.0005) success rates in second-term general chemistry. Attitudinal Likert survey results indicate that the majority of students completed the online…

We revised a sophomore-level genetics class to more actively engage the students in their learning. The students worked in groups on quizzes using the Immediate Feedback Assessment Technique (IF-AT) and active-learning projects. The IF-AT quizzes allowed students to discuss key concepts in small groups and learn the correct answers in class. The…

The development of students' science reasoning abilities is a goal of science education. Researchers measure science reasoning using a variety of instruments, each with limitations and restrictions. In this study, contrasting instructional modes were analyzed for students' science reasoning development over the course of a semester. A novel…

Although evidence supporting anthropogenic global warming and evolution by natural selection is considerable, the public does not embrace these concepts. The current study explores the hypothesis that individuals will become more receptive to scientific viewpoints if evidence for evolution and implications of global warming are presented as issues…

We developed an inquiry-based biology laboratory exercise in which undergraduate students designed experiments addressing whether material from the neem tree ("Azadirachta indica") altered bean beetle ("Callosobruchus maculatus") movements and oviposition. Students were introduced to the bean beetle life cycle, experimental…

It has been suggested that research experiences are an important element that should be included in all undergraduate Biology curricula. This is a difficult suggestion to accommodate due to issues with cost, space and time. We addressed this challenge through development of a capstone project in which Biology majors work in groups to develop novel…

Rats can be used as a model organism to teach physiological concepts in a laboratory setting. This article describes a two-part laboratory that introduces students to hypothesis testing, experimental design, the appropriate use of controls and surgical techniques. Students perform both a castration and sham-control surgery on male rats and test…

Students learn best by being actively engaged in the learning process. This essay describes a teaching technique where students generate their own questions about a course topic. This occurs at the beginning of each new section of a course. The instructor works with the class to answer the students' own questions throughout that section of…

Herbaria are collections of preserved plants specimens, some of which date back to the 16th century. They are essential to botanical research, especially in systematics. They can also be important historical documents. The collections of Lewis and Clark, Carolus Linnaeus, and Charles Darwin, to name a few, are primary sources for the study of…

As part of a biomechanics course aimed at both upper-division Biology and Physics majors, this laboratory exercise introduces students to the ingenious ways in which organisms vary the composition and form of support and defensive structures such as bone and shell to maximize their strength while minimizing the energetic cost needed to produce…

RNA interference (RNAi) is a powerful technology used to knock down genes in basic research and medicine. In 2006 RNAi technology using "Caenorhabditis elegans" ("C. elegans") was awarded the Nobel Prize in medicine and thus students graduating in the biological sciences should have experience with this technology. However,…