Described are the purposes, laboratory set-ups, and procedures of four classroom experiments: ultrasound speedometer; vibrating-bar depth gauge; folding three-dimensional model of equipotential surfaces; and a simple optical system for the reconstruction of images from computer-generated holograms. Diagrams and pictures are provided. (YP)

Specific ways in which lectures, laboratories, cooperative group learning, and examinations and grading can be used as part of a strategy to increase pharmacy student interest and involvement in basic science are outlined. The techniques focus on making the presentation of content at least as important as the content itself. (MSE)

Activities that use dandelions to show the phenomena of geotropism and autotropism are described. Directions for collecting the stalks and observing the gravitropic response are included. The topics of lag time and bending rates, autotropism, growth rate changes, presentation time, and gravity detection are discussed. (KR)

Analyzes undergraduate general-chemistry laboratory manuals (n=10) and identifies illustrative verbs representative of the types of cognitive skills given in Bloom's Taxonomy. Finds that, although the majority of the manuals are similar in their lack of promoting higher-order cognition, a few newer manuals possess the requisite activities for…

Presents protocols for setting up a Winogradsky column and biofilm slides, interpreting the chemical transformations that occur in the column as a result of color changes in the soil, identifying common microorganisms, and determining the microbial composition of the column over specified intervals of time. (WRM)

The Applications in Biology/Chemistry (ABC) curriculum is a real-world approach designed for the middle 50% of secondary students who may not learn in a predominantly abstract way. Stressing contextual and cooperative learning, ABC features 10 laboratory exercises and other hands-on, problem-solving activities involving visits to job sites and…

Describes a biochemistry laboratory course in which the curriculum revolves around a single theme: the purification, characterization, and molecular biology of threonine dehydrogenase (TDH) from Escherechia coli. Lists examples of related class research projects. Contains 41 references. (WRM)

Discusses preliminary research on a new heuristic tool for learning from laboratory activities in secondary science. Finds that use of the science writing heuristic facilitated students in generating meaning from data; making connections among procedures, data, evidence, and claims; and engaging in metacognition. (Contains 29 references.)…

Describes the benefits of using calculator-based laboratory equipment in science classes. (WRM)

A microarray experiment is presented that, in six laboratory sessions, takes undergraduate students from the tissue sample right through to data analysis. The model chosen, the murine erythroleukemia cell line, can be easily cultured in sufficient quantities for class use. Large changes in gene expression can be induced in these cells by…

Scientific knowledge is tentative and open to revision. This sense of tentativeness, or changeability, is missing in the way textbooks and teachers often portray the nature of science (NOS). Instead, students are left with the impression that the scientific method produces sure knowledge and that they can uncritically accept the knowledge because…

This article presents an activity for early-in-the-year parents' night. The beginning of a new school year is an exciting time. The authors, as teachers, like to capture that excitement by engaging their 10th-grade biology students in an inquiry project demonstrating the nature of science and scientific inquiry. They developed the Next Step…

The desire to observe and understand the natural world is strong in young children, but high school students often consider science irrelevant to their daily lives. Therefore, as teachers of older age groups, the authors constantly struggle to engage students in scientific exploration so they can master concepts and appreciate the nature of…

In this article, the author discusses the CHANCE (Connecting Humans and Nature in the Costa Rican Environment) program, a coordinated effort between The Pennsylvania State University (PSU) and the Pennsylvania Department of Education that trains 9th- through 12th-grade teachers to be more like scientists and develop a unique, pedagogical tool for…

This paper describes the author's experience of designing and teaching an interdisciplinary course titled "Light", in collaboration with a visual artist. The goals of the course, texts used, laboratory work, art studio work, and other course activities are discussed with an emphasis on how light was used as a theme to make connections between…