Describes activities by which the porosity and permeability of materials with respect to water can be measured. (CP)

This article describes how Robert LeBleu's interest in aquatic life developed and that today he owns a large hydroculture operation supplying research crayfish nationwide. Suggested laboratory experiments with crayfish are described, as well as information on additional studies, equipment needs, and tours of the hatchery. (MA)

Compared to regular education students (N=80), students (N=57) in public school special education programs perceived themselves as having less control at school and reported lower levels of happiness. Special education students (N=51) in laboratory program emphasizing perceived control had higher perceptions of control at school and more positive…

Biomimetic chemistry is concerned with the synthesis of small, molecular weight molecules which mimic the properties of metal-containing sites within certain biologically significant species. A series of experiments for an advanced undergraduate laboratory is described as a way to introduce this area into the chemistry curriculum. (JN)

Examines two West Virginia writing centers and finds no significant difference in the writing quality growth of students taught by individualized instruction in writing centers and those taught by conventional classroom instruction. Finds that the writing center programs achieved the same gain at one-half the instructional cost. (RS)

Proposes a dialogic method of training tutors, based on a learning theory which views the "class" as a conversation, where teacher and learner are indistinguishable. Asserts that where dialogue is lacking, information may be transferred, but little is learned. (MM)

Contrasts the advantages and disadvantages of writing center tutors who are familiar with the subject matter in a given field or discipline with those who are not. Asserts that by being "ignorant" of the subject matter, a tutor forces students to take responsibility for their writing. (MM)

Asserts that the advantages of word processing for business writing classes are clear. Even though a teacher confronts giving up some lecture or discussion time, the hour spent in the lab frees students from tedious recopying, provides the teacher with professional-looking papers, and permits time for more writing assignments. (RAE)

Three alternative instructional methods (instructor demonstration, demonstration plus independent study, and slide-tape presentation) for a basic food preparation laboratory were developed to facilitate the increased student achievement levels. Student performance, attitudinal, time, and cost data showed differences in effectiveness among the…

Described is a series of five related microcomputer-based laboratory analysis programs that are used by students in a college calculus-based physics course. With minor modifications these programs, which are written in BASIC, could be used in most beginning undergraduate laboratory science courses. (RH)

Discusses various types of visual impairments and how the learning environment can be adapted to limit their effect. Presents suggestions for adapting industrial arts laboratory activities to maintain safety standards while allowing the visually impaired to participate. (CH)

Describes the history of use of language laboratories in foreign language instruction and argues that both the quality and quantity of such activities fell short of the laboratories' potential. (CB)

Describes a model using correctional industries to train inmates for successful existence in the labor force after release. (CH)

Describes the use of the jigsaw teaching technique (which requires each member of a small group to provide a key piece of information) in undergraduate psychology laboratory and discussion classes. Results indicate that students evaluate the approach favorably and that their academic performance improves with use of the jigsaw technique. (JDH)

Describes a qualitative analysis laboratory in which students examine specific precipitates that can be used to identify copper, cobalt, nickel, and iron cations. The objective of the laboratory is to determine which test or sequence of tests unambiguously identifies each cation and to use the results to identify several unknowns. (JN)