This article describes one way of approaching the development of a course in laboratory work in which units are designed in a systematic way." (Author)

Describes experiments on the nutrition of weevils suitable for student teams, each team replicating the same experiment or experiments. Gives step by step experimental procedures and useful background information on weevils. Designed to introduce students to teamwork in science. (EB)

Describes a one semester-hour self-paced laboratory section accompanying a physiological psychology course. Points out five disadvantages and three advantages, including more time and advance planning needed, active involvement of students, and increased learning and retention. (CK)

Cites evidence supporting the author's view that the present national approach to standardizing measurement methods is inadequate. Discusses needs for adequate estimates of precision and evaluation of interlaboratory bias in the mandated measurement methods required by regulatory agencies and other governmental groups. (Author/CS)

This section presents new ideas with regard to apparatus for teaching physics. The following four ideas are presented: (1) measuring speed of light (2) a poor man's barometer, (3) center of mass of a rotating object, and (4) minimizing glass breakage. (HM)

Argues for the use of procedures known as clearing and double staining to clear soft tissues and differentially stain cartilage and bone in specimens. Describes each step of the process. (DDR)

Introduces a chemistry lab activity that is suitable for almost any level of science class. Provides students with five solutions and asks them to determine if they have five distinct compounds or if any are the same. (YDS)

A statistical comparison of real and virtual frog dissections methods has been made. A study was designed to test whether students in high school AP biology class performed equally well using both methods or one method was better than the other.

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…