Richard C. Williams

The Impact of Collective Bargaining on the Principal: What do we Know?

A hydrostatic bearing for a roller, drum or the like having a bearing surface comprising a bearing block mounted in a support member including a body member having a central cylindrical bore, a base member for mounting the body member, and a piston movable axially in the bore. The piston is formed with a pocket at one end confronting the bearing surface and has a conduit running the axial length of the piston between the pocket and its opposite axial end which confronts the bottom of the bore. The bearing further includes adjusting means for displacing the piston, including a screw member of smaller cross-section than said piston, engageable in a threaded opening in the lower axial end face of the piston. By this arrangement, the load on the bearing block is mainly supported by the pressure medium and the adjusting means is lubricated by the pressure medium in the space, between the bottom of the bore and the lower axial end face of the piston.

From program evaluation to intstructional information system

Abstract This article describes the emergence of a new and exciting possibility for upgrading teaching and learning in American schools. We call this new phenomenon, instructional information systems (IIS). Instructional information systems are computerized data banks that allow a variety of users to ask important evaluative questions about student learning, classroom function, school management, and district policies. They built on current practice in testing and program evaluation but go way beyond it.

Evaluation Design Project

to all schools receiving grants so that they know (a) that an evaluation is required, and (b) to ensure uniform reporting procedures. (3) Staff development is a major aspect of an integration plan. The ultimate success of staff training is the degree of implementation in the classroom. Procedures to monitor this area need to be built into the program. (4) Bilingual instruction in Spanish was provided for teachers at schools affected by NES/ LES students. The time it takes for adults to learn a second language varies from person to person. Thus, some provision for continued training of individuals who fail to master the language in a set period of time, but still wish to continue, should be made. (5) The coordination and management of all components requires that a dialogue be maintained to ensure that duplication of effort in collecting data does not occur and, as a consequence, that school personnel are not deluged at the end of the year with requests for similar information.