Investigates the effects of interactive computer-based simulations presented prior to inquiry-based laboratory experiments on students' conceptual understanding of mechanics, waves/optics, and thermal physics. Uses conceptual tests to assess conceptual understandings of each topic. Indicates that the use of the simulations improved students'…

An important part of the science classroom involves teaching students how to safely use tools, techniques, and procedures. As emphasized in the National Science Education Standards, "safety is a fundamental concern in all experiential science" and teachers must "teach students how to engage safely in investigations inside and outside the…

In America's Lab Report: Investigations in High School Science, a National Research Council (NRC) committee found that labs have the potential to help students master science subject matter, develop scientific reasoning skills, increase interest in science, and achieve other important science learning goals. High school graduates who attain these…

The field of bioinformatics is developing faster than most biochemistry textbooks can adapt. Supplementing the undergraduate biochemistry curriculum with data-mining exercises is an ideal way to expose the students to the common databases and tools that take advantage of this vast repository of biochemical information. An integrated collection of…

A recombinant DNA technology course was designed to promote contextual, collaborative, inquiry-based learning of science where students learn from one another and have a sense of ownership of their education. The class stressed group presentations and critical reading and discussion of scientific articles. The laboratory consisted of two research…

Laboratory demonstration, as well as biochemistry lecture, has been used to complement explanation of biochemical processes. The laboratory demonstration is very useful in teaching biochemistry to students who lack background in biology. The experimental model of fibrinolysis described here presents a complex biological reaction in simplified…

Introductory biology courses for pre-professional majors at large universities are usually high-enrollment lectures with associated labs that complement the lecture, but are independently taught and administered. Although web-based instructional formats have become popular alternatives to traditional lectures, it is unknown how these formats…

Qualitative analysis schemes are used in undergraduate laboratory settings as a way to introduce equilibrium concepts and logical thinking. The main component of all qualitative analysis schemes is a flame test, as the color of light emitted from certain elements is distinctive and a flame photometer or spectrophotometer in each laboratory is…

This hearing discussed how lack of coordination between laboratory exercises and classroom lectures, inadequately trained teachers, languishing facilities, and current high school organization diminish the value these exercises can have or prohibit them all together, and highlighted how a strong hands-on experience can create scientifically…

A dissertation study is described which employed action research methods and was conducted over four semesters of practice in a large first year undergraduate physics laboratory making extensive use of microcomputer-based laboratory (MBL) technology. Three cycles of action research are recounted, along with the resultant changes in goals,…

This paper describes the first phase of a study to investigate students' evaluations of computer laboratory modules in a university-level, non-majors biology course. The National Science Foundation-funded project has two primary goals: (1) to develop programmable, multifunctional Bio LabStations for data collection and analysis, lab extensions,…

Two questions about the effects of microcomputer-based laboratory (MBL) activities on graphing skills were addressed in this study: (1) the extent to which activities help students link their concrete experiences with motion with graphic representations of these experiences; and (2) the degree of importance of the real-time aspect of the MBL in…

A study was designed to evaluate whether congruency or incongruency between a teacher's intended discovery/inquiry laboratory instructional strategy and his/her actual behaviors used to implement that strategy had an effect on higher level learning by students. Also assessed was whether student performance on science projects can be an effective…

This paper reports a study which investigated student characteristics for predicting success in an independent, open laboratory. Data were gathered from introductory biology students (N=98) enrolled in a public, two-year college near Atlanta, Georgia. Stepwise multiple regression analysis was used to determine the effects of age, sex, laboratory…

Presented is a review of three methods for evaluating the effects of laboratory work in high school science instruction. The report focuses specifically on evaluating student performance, what aspects are to be evaluated, and how to evaluate. A table is given of some of the limitations and benefits of each of the assessment procedures. The authors…