This article addresses some of the issues that surround national science education standards for Grades K-12 and presents a more general and updated introduction to national and state science standards. It also provides a brief overview of the science content standards movement in the United States, insights into the forces that have caused the…

This article describes a simple and inexpensive hands-on simulation of protein folding suitable for use in large lecture classes. This activity uses a minimum of parts, tools, and skill to simulate some of the fundamental principles of protein folding. The major concepts targeted are that proteins begin as linear polypeptides and fold to…

A new, simple classroom technique helps cell biology students understand principles of Michaelis-Menten enzyme kinetics. A student mimics the enzyme and the student's hand represents the enzyme's active site. The catalytic event is the transfer of marbles (substrate molecules) by hand from one plastic container to another. As predicted, increases…

Genuine artistic activity in any medium provides a lens through which to examine the world as well as to express a reaction to it. Opening a wide variety of subjects to artistic explorations also opens the door of learning, specially to students with varied levels of ability. It was with these thoughts in mind that the two authors met to revise a…

Concept maps are being used by an increasing number of educators in Europe and the US. This paper has four goals. First, it discusses problems in developing Novak's style concept maps in Turkish caused by linguistic differences between Turkish and English. Second, it reports the findings of a research study conducted to adapt concept maps to…

Kinetic models of a gas can be hard for students to understand. Typical tools do not display events at the microscopic level, yet computer simulations of the molecules lack a hands-on aspect. Here a new tool is described that combines the squeezing of a syringe with a computer simulation, and it is shown that this has worked well in class for both…

Today's biology teachers are confronted with many challenges as they endeavour to maintain or improve the quality of their courses. Increasing enrollments, decreasing budgets, environmental considerations, student concerns, and curriculum changes often necessitate change. Providing a quality laboratory experience under such constraints is…

The Human Genome Project (HGP) is a recent scientific milestone that has received notable attention. This article shows how a biology course is using the HGP to enhance students' experiences by providing awareness of cutting edge research, with information on new emerging career options, and with opportunities to consider ethical questions raised…

A brief review of the history of pedagogical content knowledge reveals various definitions and conceptualizations of the construct, as well as some conceptual problems. A new conceptualization--teacher pedagogical constructions--is offered to address some of the problems associated with PCK. Seven assertions that comprise the new conceptualization…

In this paper, I describe the action research I conducted in my third-grade science classrooms over the course of two years. In order to gain an understanding of my third-grade students' ideas about animal adaptations and how the teaching of a unit on crayfish influenced these ideas, I used clinical interviews, observations, and written…

Although there is a considerable emphasis on inquiry-based, active learning in standards documents, curriculum documents, and textbooks, there exists a great deal of debate regarding the effectiveness of specific curricular and instructional approaches, including kit-based instruction. This study examines the efficacy of science kits in improving…

The integration of mathematics and science is a recommended pedagogical strategy made by major reform-based documents. The goal is to enhance learner understandings by recognizing the relationships between the two disciplines. Documented attempts to systematically enact this initiative in teacher preparation remain uncommon. As a result, an…

This study, conducted from a constructivist perspective, examined the belief system of a prospective elementary teacher (Barbara) about science teaching and learning as she developed professional knowledge within the context of reflective science teacher education. From an analysis of interviews, observation, and written documents, I constructed a…

Writing can be a powerful tool for learning biology. Writing assignments in biology could help students personalize and understand the biology knowledge they are studying. In this article, the authors present the "Botanical Sense of Place" (BSP), a convenient and easy-to-use writing template that they developed to elicit and probe students' prior…

Diminishing "standards" and "alignment" to overused buzzwords or superficial checklists masks the dire need for truly systematic and operational standards-based alignment in science education. In this article, the authors report the findings of an ongoing collaborative effort between cognitive researchers and urban science…