Suggests that writing centers should conduct more sophisticated evaluations, and should turn to educational program evaluation and select general types of evaluations most appropriate for writing centers. Presents an evaluation which exemplifies and clarifies what is called for in the first half of the article. (SC)

Introduces a laboratory experiment that investigates and compares the carbon monoxide content of automobile exhaust and cigarette smoke using gas chromatography techniques. (YDS)

Presents a method for illustrating the continuity of behavior during schedules of reinforcement, focusing on a demonstration on computer-controlled movement tracking. Discusses how this method can be used to illustrate and stimulate discussion about topics such as the acquisition of operant behavior. (CMK)

Examines the theoretical and pragmatic objections to first-year composition courses raised by recent abolitionists who are composition insiders. Assesses four frequently proposed alternative models of first-year composition. Discusses evaluating these alternatives from the perspective of a writing program administrator's dual roles of curriculum…

Presents a laboratory experiment showing the properties of smooth muscle using the crop and gizzard of the earthworm. (ASK)

Advocates the use of springtails (Collembola) in the K-12 classroom as a model invertebrate that can easily be reared and manipulated to demonstrate key concepts in biology. Describes experimental procedures using springtails. (SAH)

Introduces programs that assist blind students such as Tactile Access to Education for Visually Impaired Students (TAEVIS). Reports on two blind students who successfully completed physics courses and their learning strategies. Discusses the accessibility of visual aids. (YDS)

Presents a chemistry activity that introduces students to one type of chemical bond by developing the integer operation concept of zero pairs. Leads to an activity of combining drops of 0.3 molar solutions to form six different colored precipitates from five solutions. (ASK)

Describes an experiment in which plasmid DNA is digested with restriction enzymes that cleave the plasmid either once or twice. The DNA is stained, loaded on a gel, electrophoresed, and viewed under normal laboratory conditions during electrophoresis. (DDR)

Describes a science laboratory experiment on odors which demonstrates the integration of chemistry and biology. Explains how the smell function works. (Contains 13 references.) (YDS)

Explains the process of establishing transgenic plants which is a very important tool in plant biology and modern agriculture. Produces transgenic plants with the ability to synthesize opines. (Contains 17 references.) (YDS)

Explains a thin-layer chromatography (TLC) experiment that allows students to study complex mixtures of lipids using small volumes. Uses a water-soluble dye to stain lipids that is fast and safe. (YDS)

Shows that the reality of Robert Moore and his University of Illinois Writing Clinic is far more complex than previously assumed. Offers a history that is a familiar narrative about the politics of writing centers and writing programs designed to meet the needs of under-prepared students. (SG)

Presents the concept of directiveness (regarding the behavior of a consultant/tutor in a writing conference) as a continuum that can be defined in terms of particular characteristics. Examines students' and tutors' attitudes regarding the directiveness of tutors. Finds perceptions between consultants and students differed considerably on a number…

Investigates how participant expectations are enacted in tutorial conversations and in self-reported role perceptions. Considers how tutors, tutees, and course instructors perceived the tutor's role. Examines the tensions implicit in expectations they hold of the tutor's role(s), especially as they compare to those of the course instructor. (SG)