Preschool children's math-related behaviors mediate curriculum effects on math achievement gains

This study used a mediational model to examine the effect of curriculum condition on student behaviors and how those behaviors related to math achievement gains. The student behaviors examined were children's participation in learning-related activities, talking during learning activities, and level of engagement with the materials. Conducted as part of a larger project involving the implementation and evaluation of a preschool mathematics curriculum, this study involved twenty urban prekindergarten sites with 57 classrooms randomly assigned to the new curriculum or a practice-as-usual condition. The final analytic sample included 675 children, predominately from low-income homes. Results showed that the greater gains made by children in curriculum classrooms were mediated by the number of times children were observed focused on mathematics and the number of times they were observed talking during mathematics. Findings from this study demonstrate the importance of focusing on children's actual responses to a new curriculum in determining its effects.     

Using a Field Trip Inventory to Determine If Listening to Elementary School Students' Conversations,While on a Zoo Field Trip,Enhances Preservice Teachers' Abilities to Plan Zoo Field Trips

This study investigated whether listening to spontaneous conversations of elementary students and their teachers/chaperones, while they were visiting a zoo, affected preservice elementary teachers' conceptions about planning a field trip to the zoo. One hundred five preservice elementary teachers designed field trips prior to and after listening to students' conversations during a field trip to the zoo. In order to analyze the preservice teachers' field trip designs, we conducted a review of the literature on field trips to develop the field trip inventory (FTI). The FTI focussed on three major components of field trips: cognitive, procedural, and social. Cognitive components were subdivided into pre-visit, during-visit, and post-visit activities and problem-solving. Procedural components included information about the informal science education facility (the zoo) and the zoo staff and included advanced organizers. Social components on student groups, fun, control during the zoo visit, and control of student learning. The results of the investigation showed that (a) the dominant topic in conversations among elementary school groups at the zoo was management, (b) procedural components were mentioned least often, (c) preservice teachers described during-visit activities more often than any other characteristic central to field trip design, (d) seven of the nine characteristics listed in the FTI were noted more frequently in the preservice teachers' field trip designs after they listened to students' conversations at the zoo, and (e) preservice teachers thought that students were not learning and that planning was important.     

Action research: A situated perspective

Rigoberta Menchú has become an icon for the struggles of oppressed peoples for justice and self-determination. For many academics and activists around the world, the accusations of lying made against Ms. Menchú by David Stoll brought into sharp focus the politics of "truthmaking" and the absolutist categories of fact and fiction. In this attempt to discredit Ms. Menchú, and through her, the Mayan experience of genocide by the Guatemalan military and its U.S. sponsors, important questions have been raised about how and when Third World women can speak, the conditions under which they will be heard, and the strategies used to silence them. In this paper, the author draws upon some of the lessons of the Rigoberta Menchú case to examine the politics of truth making in Canada in a recent controversy regarding a speech she made criticizing American foreign policy and urging the women's movement to mobilize against America's War on Terrorism. The highly personalized nature of the attacks on the author by political and media elites sought to accomplish a closing down of public space for informed debate about the realities of U.S. foreign policy and to silence dissent. Repeatedly emphasizing her status as an immigrant outsider, this controversy also contributed to the (ongoing) racialization of people of color as a treacherous "enemy" within the nation's geographical borders, against whom "Canadians" had to be mobilized.     

A new approach to vocational guidance for school-leavers in the 1920s? Exploring key themes from an influential 1926 report

The economic difficulties currently being experienced in the United Kingdom have served to further intensify debates about the role different kinds of education could and should play in both preparing individuals for work and boosting economic growth. However, these contemporary and historical debates have tended to neglect vocational guidance. This article offers a case study of an experiment to boost vocational guidance in schools during the period of social and economic dislocations that followed the First World War. The scheme drew on the thinking of influential figures like Cyril Burt, and at a theoretical and practical level sought to better connect the classroom with the workplace. Its stated aim was to better prepare children for employment and encourage school-leavers to find work that suited them.     

Co‐education‐‐II: AN ANALYSIS OF RESEARCH ON COMPARATIVE ATTAINMENT IN MATHEMATICS IN SINGLE‐SEX AND COEDUCATIONAL MAINTAINED GRAMMAR SCHOOLS

The Schools Council's evaluation of i.t.a. (Warburton and Southgate, 1969) did not seek to ascertain the attitudes towards i.t.a. of teachers using craditional orthography (t.o.) other than those involved in the British i.t.a. experiments in teaching control groups. This smaller‐scale research aimed to investigate the attitudes of t.o. users as well as i.t.a. users in the Berkshire College school practice catchment area.

The attitude measures distinguished clearly between users and potential users of i.t.a. and t.o. users.

No significant differences in attitude relating to the age of children taught, the age and service of the teacher or the position held in school were found for the t.o. sample, nor, contrary to some of the Schools Council findings, for the i.t.a. users. The sole exception was that older t.o.‐using teachers showed more feelings against i.t.a. than younger teachers.

About 10 per cent of t.o. users indicated that they were potential users of i.t.a., whilst 13 per cent of i.t.a. users rejected i.t.a. in a future situation. There was little demand for i.t.a. courses; only 3‐57 per cent of the t.o. users wished for these.     

Dimensions of R&D location in the United States

R&D activities in the United States, as in other advanced economies, are geographically concentrated in certain types of locations. This study presents data on the location of four dimensions of R&D in the U.S.: industrial R&D laboratories, scientists and engineers engaged in R&D, scientists and engineers employed by the federal government, and research universities. Industrial R&D is much more concentrated in large urban areas than the other dimensions, and appears to locate more in response to the location of manufacturing activity than to the location of research universities and federal research facilities. The location of R&D employment, which includes government university, and industrial employees, is associated with facilities for all three types of R&D. Because of these factors, R&D in the U.S. is found on a significant per capita basis in 44 of 177 urban areas, most of them in the northeastern portion of the country. When two dimensions, industrial R&D laboratories and R&D employees, are combined as a measure of R&D concentration, the locational pattern is less clustered regionally. Ten urban areas in all regions of the U.S. are identified as important complexes of R&D. Since the location of R&D is a major indicator of comparative advantage for technological activities and the economic potential of urban regions, only a few areas of the U.S. are likely to remain important in the generation of innovations.     

The development of an innovation: the case of porvair

Economists and management “scientists” tend to adopt a rationalistic, “black box” approach to the treatment of technological innovation, with decisions to invest in innovation being viewed as climactic acts and with the significant impact of risk and uncertainty often being disregarded. This paper examines an alternative analytical perspective: that a least the early development of technological innovation is a process of incremental decision making where managerial responses are affected by the consequences of previous decisions and by alterations in external information. The development of the “poromeric” Porvair discussed here illustrates the considerable risks that have to be borne when undertaking radical innovation, and the nature of the uncertainties, the interdependency between them and the manner in which they persist, in this case even beyond the commercialization of the new product.