The kinetics experiments on the ligand-C[subscript 60] exchange reactions on (dihapto-[60]fullerene) pentacarbonyl tungsten(0), ([eta][superscript 2]-C[subscript 60])W(CO)[subscript 5], form an educational activity for the inorganic chemistry laboratory that promotes graphical thinking as well as the understanding of kinetics, mechanisms, and the…

The purpose of this study was to investigate (a) what effect the use of interactive computer-based simulations (ICBSs), the use of laboratory inquiry-based experiments (LIBEs), and the use of combinations of an ICBS and a LIBE, in a conceptually oriented physics course, have on science teachers' beliefs about and attitudes toward the use of these…

This article describes a novel, hands-on method to qualitatively determine the extent of microbial activity in topsoil using ordinary blank paper. Appropriate and scalable for the high school and college level, these experiments expose students to some of the challenges facing environmental researchers and also contribute to curriculum development…

Forty-eight new secondary science teachers participated in a study that required a listing, discussion, and application of criteria to rank three chemistry laboratory procedures. The three similar lab procedures involved synthesis of a compound from its elements. The top criteria noted by teachers focused on procedural issues (i.e., timeliness,…

This paper is a discussion of how videocassette tape recording is used and the results of its use, in general chemistry pre-laboratory instruction at the University of Southern Mississippi. (Author)

Internet-based learning systems, or e-learning, are widely available in institutes, universities, and industrial companies, hosting regular or continuous education programs. The dream of teaching and learning from anywhere and at anytime becomes a reality due to the construction of e-learning infrastructure. Traditional teaching materials and…

This paper presents an application of integration to the field of hydraulics. An integral relation for the time required to drop the fluid contained in a cylindrical tank from one level to another using a hole in the tank wall is derived. Procedures for constructing the experimental equipment and procedures for determining the coefficient of…

This paper describes the Scientific Tools and Techniques course for ninth grade students in the Dekalb County, Georgia, public high schools. The course is offered at the Fernbank Science Center, a magnet school owned by the Dekalb County Schools and Fernbank Incorporated and operated by the school system. Investigations are described in the…

Student-designed laboratory exercises have become an important part of the physics classes at Piedmont Virginia Community College. Rather than filling in the blanks of a laboratory workbook, students are required to design and carry out weekly experiments which relate to the physics concepts being studied. Using computers, standard laboratory…

A conflict exists over the use of animals in the classroom. One aspect of this use involved the dissection of animals. Animal protection advocates report that dissections constitute abuse of the animals dissected. The advocates state that what is learned by dissection could be more effectively learned by other means. Some science educators state…

This paper describes the events following the news of Oersted's discovery of the effects of a current of electricity on a magnetic needle. It focuses on Biot and Savart's law which expresses the force between a current element and a "molecule of magnetism" that can be deduced from Ampere's law of interaction between two current elements.…

Research strategies used to study human aggression include laboratory study, experimental simulation, field experiment, field study, judgment task, sample survey, and less empirical strategies such as computer simulations and formal theory. The context of these strategies can be classified as either contrived, natural, or irrelevant. Major issues…

SEVERAL PROBLEMS WHICH ARISE WITH THE USE OF FILM AND TELEVISION IN INSTRUCTION WERE INVESTIGATED. STUDY CONSIDERATIONS WERE FOCUSED ON DIFFERENTIATION BETWEEN RELEVANT AND IRREVELANT LEARNING BY COMPARING LABORATORY TEACHING TECHNIQUES FOR AN ENGINEERING COURSE WITH FILM PRESENTATIONS OF THE SAME MATERIAL. THERE WERE NO OVERALL SIGNIFICANT…

Presented is a science activities in energy package which includes 15 activities relating to chemical energy. Activities are simple, concrete experiments for fourth, fifth and sixth grades which illustrate principles and problems relating to energy. Each activity is outlined on a single card which is introduced by a question. A teacher's…

Presented is a science activities in energy package which includes 14 activities relating to energy conservation. Activities are simple, concrete experiments for fourth, fifth and sixth grades, which illustrate principles and problems relating to energy. Each activity is outlined on a simple card which is introduced by a question. A teacher's…