This study investigated perceptions of 56 students in 4 general chemistry labs regarding their understanding of chemical concepts and processes. Conceptual understanding of scientific investigation was the focus. Students using a pre-lab guide for lab preparation were compared with students completing a traditional pre-lab assignment. Data sources…

This book is a joint publication of the National Science Teachers Association (NSTA) and the Society of Protozoologists and is the result of efforts to find a way in which protozoa research can be used to teach biology. This program puts cutting edge science into the hands of science teachers and enables students to experience a variety of…

Numerous issues in on-campus clinical training are addressed in this book. Concerns such as developing, evaluating, and revising on-campus laboratories are covered. The first chapter includes a review of the available, published literature on running clinics. The text is then divided into six parts. Part One outlines the Council for Accreditation…

This paper discusses the history of language laboratories. It was Edison's invention of the tin foil phonograph in 1877 that made the first language laboratories possible. It was used for a foreign language class for the first time in 1891. At first, records were mainly used to preserve rare languages, but in the late 1800s and early 1900s,…

In the past decade, theories of the social construction of knowledge have resulted in the widespread use of collaborative learning techniques. Computer technology has been in the forefront of this movement, with one result being a minor revolution in writing instruction. Specifically, communications and text sharing through both local and wide…

This study investigated computer laboratories in New Zealand schools. A questionnaire was used to obtain information in four areas: (1) demographic data, including the name of the school, class levels, governing authority, gender composition, roll size, staffing, and socio-economic ranking; (2) qualitative and quantitative data about the school's…

This booklet provides information for teachers about the value of appropriate animal use in the classroom and some suggestions for assuring the proper care and use of animals in education. Discussion includes: (1) the importance of animals in education; (2) contributions of animals in classroom learning; (3) contributions of animals to science…

According to an instructor of basic writing in the Writing Lab at the University of Massachusetts in Amherst, he can teach differently in a computer-networked writing lab than he did in a conventional classroom. Because the room is designed to teach writing and nothing else, it offers a congenial workspace where the teacher can interact with…

Presents the advantages and disadvantages associated with the canned computer lab from the educational and software aspects. Summarizes two years of experience with canned labs and gives an example of a program and a typical student output. (GS)

Describes a method for the measurement of the velocity of sound in various liquids based on the Raman-Nath theory of light-sound interaction. Utilizes an analog computer program to calculate the intensity of light scattered into various diffraction orders. (CP)

Two laboratory investigations are described: (1) staining chromosomes in root tips and (2) demonstrating pollen tube growth. (LS)

Proposes that science teaching be based upon experimental work of the students, but most Italian schools are not equipped for this. This implies the development of inexpensive kits and syllabuses which can realistically be used in the schools. Provides one example of a suitable kit for individual experiments on electricity and magnetism. (GS)

Describes an undergraduate biochemistry experiment which involves the preparation and kinetics of an oxidation-reduction enzyme system, methemoglobin reductase. A crude enzyme extract is prepared and assayed spectrophotometrically. The enzyme system obeys Michaelis-Menton kinetics with respect to both substrate and the NADH cofactor. (MLH)