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A cascade model of professional development presents a particular risk that "knowledge" promoted in a programme will be diluted or distorted as it passes from originators of the programme to local trainers and then to the target teachers. Careful monitoring of trainers' and teachers' knowledge as it is transferred through the system is therefore imperative. This paper focuses on the transfer of content knowledge through an in-service teacher professional development programme and offers an innovative methodology for investigating knowledge transfer, i.e. through insights gained during a mentoring process. The findings suggest that this methodology facilitated assessment of knowledge transfer because it involved the identification of knowledge in practice. The focus on knowledge in practice appeared to avoid a deficit model of trainers'/teachers' knowledge and revealed that content knowledge was generally being successfully transferred throughout the system. A detailed analysis of different aspects of content knowledge transfer suggested various foci for additional training.

In this paper I report findings from a four year study of beginning elementary school teachers which investigated development in their mathematical knowledge for teaching (MKT). The study took a developmental research approach, in that the teachers and the researcher collaborated to develop the mathematics teaching of the teachers, while also trying to understand how such development occurred and might be facilitated. The Knowledge Quartet (KQ) framework was used as a tool to support focused reflection on the mathematical content of teaching, with the aim of promoting development in mathematical content knowledge. Although I focused primarily on whether and how focused reflection using the KQ would promote development, it was impossible to separate this from other influences, and in this paper I discuss the ways in which reflection was found to interrelate with other areas of influence. I suggest that by helping the teachers to focus on the content of their mathematics teaching, within the context of their experience in classrooms and of working with others, the KQ framework supported development in the MKT of teachers in the study.

Provides a brief description of the Z39.50 information retrieval standard and reviews evaluation criteria and questions that should be asked when selecting a Z39.50 client. Areas for consideration include whether to buy or build a Z39.50 client, the end-user's requirements, connecting to a remote server, searching, managing the search response, services, the vendor, and testing. (AEF)

Discusses the interlibrary loan (ILL) protocol, a standard based on the principles of the Open Systems Interconnection (OSI) Reference Model. Benefits derived from protocol use are described, the status of the protocol as an international standard is reviewed, and steps taken by the National Library of Canada to facilitate migration to an ILL protocol-based environment are outlined. (12 references) (SD)

Describes an international interlibrary loan (ILL) protocol that was developed by the National Library of Canada to permit the exchange of ILL messages between bibliographic institutions that use different computers, systems, and communications services. Standardization is discussed, protocol testing is described, and international ILL protocol activities are related. (nine references) (LRW)

The first of two articles describes the development of a protocol for interlibrary loan communications by the National Library of Canada, and discusses the benefits derived from standards that allow libraries using different communications equipment to exchange messages. The second discusses the impact of the standardized protocol on microcomputer-based operations. (CLB)

An interlibrary loan protocol has been developed to facilitate resource sharing in a computerized library environment. The protocol defines a standard which permits the exchange of ILL messages between bibliographic institutions that use different computers, systems and communications services. The protocol is currently being standardized by the International Organizations for Standardizations (ISO) and is being examines for implementations by institutions in North America and Europe. [ABSTRACT FROM PUBLISHER]