Sensitivity to the sounds and noises affecting the operation of industrial arts and vocational education programs is imperative for the professional educator. All teachers need to develop the capacity to "tune-in" on noises or sounds which signify prompt reaction to a hazardous condition or an unsafe act. (CT)

Highlights the guidelines for assuring safety that are endorsed within the National Science Teachers Association (NSTA) Pathways to the Science Standards. Discusses findings of an ongoing study of 500 science teachers that indicate science teacher understanding of the National Science Education Standards and NSTA's guidelines as they relate to…

Recommends the use of food storage jars for long-term storage of specimens in biology laboratories. Reports excellent preservation rates over a 20-year period. (DDR)

A simple combination pH electrode consisting of a solid-state quinhydrone sensor and a solid-state quinhydrone reference electrode is described. Both electrodes are essentially rubber stoppers that are inserted into a special doublewalled holder.

A laboratory course called cytochrome c that focuses on the theme of biochemical research is presented. The students follow this course by incorporating team-investigation and self-directed experimentation that provides them an opportunity to experience the excitement of research.

A thin-wall disposable Pasteur pipet is used as a vacuum-tight receptacle for air-sensitive compounds to ascertain their melting points. This technique is easy, economical, and successfully used for many years to develop air-sensitive samples for melting point determinations.

A study of the vibrational spectroscopy of the cis and trans isomers of 1,2-dichloroethylene provides an excellent opportunity to learn the applications group theory in laboratories. The necessity of using infrared (IR) spectroscopy and Raman spectroscopy in making full vibrational assignments is illustrated.

An instructive experiment for the synthesis of ethyl trans-cinnamate, a pleasant smelling ester used in perfumery and flavoring by the reaction of benzaldehyde with the stable ylid triphenylphosphorane is described. The synthesis, workup and characterization of trans-cinnamate may be accomplished in a single laboratory session with commonly…

While teaching in a California charter school in the late 1990s, I had the experience of working one year under the dictates of a highly scripted curricular program and the next year in the absence of an effectively crafted instructional plan. In both cases it proved difficult for teachers to provide quality instruction to students. In an effort…

The late phase of LTP (L-LTP) is typically induced by repeated high-frequency stimulation. This form of LTP requires activation of transcription and translation and results in the cell-wide distribution of gene products that can be captured by other marked synapses. Here we report that theta frequency stimulation (5 Hz, 30 sec) applied to the…

A laboratory experiment designed to examine the entrance and exit effects in small electrochemical filter-press reactors used in the laboratory is presented. The single compartment of the filter-press reactor is filled with different turbulence promoters to study their influence as compared to the empty configuration.

The environmentally focused general chemistry laboratory provides a format for teaching the concepts of the mainstream laboratory within an environmental context. The capstone integrated exercise emerged as the overwhelming favorite part of this laboratory and the experiment gave students an opportunity to do a self-directed project, using the…

The Old Westbury Neuroscience International Research Program (OWNIP) encourages undergraduate students from health disparities populations and underrepresented minorities to pursue careers in basic science, biomedical, clinical, and behavioral health research fields. To evaluate this program, several measures were used tracked through an online…

In this article we present an investigation that focused on the students' perception of using Blogs as a means to supplement in-class language learning activities. Blogs are easy to manage and enable students to publish their work in a chronological manner. They help students to engage in online exchanges and promote learner autonomy. This study…