Describes the development of the Science Laboratory Environment Inventory (SLEI) instrument for assessing perceptions of the psychosocial environment in science laboratory classrooms, and reports validation information for samples of senior high school students from six different countries. The SLEI assesses five dimensions of the actual and…

An inexpensive way to foster interactive, participatory learning in the language laboratory through communicative tasks is described. Problems with traditional approaches are discussed, and enthusiastic reactions from both students and teachers to the University of Maryland-College Park multimedia approach are reported. (39 references) (LB)

Describes the electrical and material characteristics of a wide variety of sensors and switches, as well as methods for connecting them to computers that are equipped with a joystick interface. Includes a BASIC computer program that facilitates automation of science experiments and storage of data gathered with simple transducers and sensors.…

Provides a step-by-step guide for a simple experiment to measure the approximate percentage of oxygen found in the air that we breathe. Includes background theory, working drawings, chemicals needed, list of supplies, experimental procedure, data evaluation method, and suggestions for extended study. (Author/JJK)

Presents recent changes in the technology, expansion of courseware, and distribution to other institutions of the interactive videodisc courseware utilized as a significant part of the undergraduate chemistry curriculum at the University of Illinois since 1986. (JJK)

Authors describe a biology course for nonmajors that appealed to student interests while retaining content integrity. The other philosophical foundations of the course were to increase student involvement and to conduct at least half of the laboratory aspect of the course at field-based locations. Details of transportation considerations,…

Describes the study of sandy beach zonations as a seashore activity for either high school or lower-level college courses in biology, ecology, or marine biology. Students first draw a profile of a beach scene and then collect specimens from the zones of the shore. In a laboratory, students identify their specimens and relate them to the beach…

Reports study of college biology laboratory course where 604 students were placed in pairs based on their scientific reasoning ability (intuitive, transitional, reflective). Results indicate no significant difference between type of partner and laboratory score or posttest reasoning score. Survey results indicate reflective partner was viewed as…

A mechanical analogy between the microscopic motion of a charged carrier in an ordinary resistor and the macroscopic motion of a ball falling along a slanted board covered with a lattice of nails is introduced. The Drude model is also introduced to include the case of inelastic collisions. Computer simulation of the motion is described. (KR)

New health occupations described are biomedical equipment technician, perfusionist, orthotist, biocommunications manager, biophotographer, health sciences librarian, instructional designer, medical writer/editor, and medical artist/illustrator. Association contacts for further information are listed. (SK)

The assignment of listening tasks for students to do while listening to conversational English tapes in a Japanese language lab is described. Students are instructed to create their own visuals. Sample activities and procedures are outlined. (Contains 13 references.) (LB)

Provides simple recommendation for teachers and school administrators to aid in ensuring safety in the laboratory and reduce risk of injury to students. Discusses legal implications and major areas of concern. (ZWH)

Reviews current writing center debates about the peer tutor's role and authority. Presents three case studies investigating the ways in which first-time tutors and their clients enact role and authority in their tutorial relationships. (RS)

The classification scheme for periodontal diseases developed in 1989 is discussed, and technologies, both surgical and nonsurgical, for prevention, control, and regeneration of periodontal tissues are described and compared. Research needs are discussed. (MSE)

Describes mobile computer carts developed at the Lawrence Hall of Science that use IBM PS/2 computers and Personal Science Laboratory probeware. Activities using temperature probes for elementary and secondary school students are described, including greenhouse environments, ice cream/chemical reactions, probe races, motion studies, and…