National Curricular Parameters for Mathematics: From the Creation of the Kaleidoscope to the Necessity to Look Back to Move Forward

2021 ◽  
Vol 23 (8) ◽  
pp. 47-67
Author(s):  
Elenilton Vieira Godoy ◽  
Karen Gonçalves Britis ◽  
Carlos Roberto Vianna
Keyword(s):  
Elementary Education ◽  
Political Parties ◽  
National Curriculum ◽  
Primary School Teachers ◽  
Thematic Section ◽  
Data Collection And Analysis ◽  
Education Design ◽  
Productivity Indices ◽  
The One ◽  
And Diffusion

Background: In the last decades in Brazil, the prescriptions of the official curricular documents of school mathematics have been constituted as a practice of successive governments. However, there is still little research on the participation of mathematics teachers and educators in the construction of these prescriptions. Objective: To present the perspective of the research collaborator in the general coordination of the PCNs (National Curriculum Parameters) in the area of Mathematics (3rd and 4th cycles of elementary education). Design: This is a qualitative research, with the production of a documentary source through interviews with thematic oral history procedures. Setting and participants: The research collaborator was professor Dr. Célia Maria Carolino Pires, and the interviews were conducted at her residence. Data collection and analysis: Oral sources were used, in the form of interviews with a researcher in the field of mathematics education, as well as written sources that complemented the necessary information. Results: This article presents a thematic section that, on the one hand, makes public the opinions of a person who actively participated in the elaboration and diffusion of the PCNs; and, on the other hand, it invites us to reflect on how - in the last 50 years in Brazil - primary school teachers have had the opportunity to be supporting/protagonists in terms of curriculum production, and how this production has been conducted and understood as a government policy (and political parties) and not a State policy.  Conclusions: The article presents considerations made by a participant engaged in the process of elaborating and disseminating the Mathematics PCNs for the 3rd and 4th cycles of elementary education and - in addition - it was constructed to promote a reflection on more recent themes that include, for example, to think about how external assessments start to induce the production of curricula, functioning as thermometers that supposedly can capture the productivity indices of the school system and, at the same time, promote more symptoms of the illness they intend just to “gauge”

scholarly journals A simple moment model to study the effect of diffusion on the coagulation of nanoparticles due to Brownian motion in the free molecule regime

2012 ◽  
Vol 16 (5) ◽  
pp. 1331-1338 ◽  
Author(s):  
Wenxi Wang ◽  
Qing He ◽  
Nian Chen ◽  
Mingliang Xie
Keyword(s):  
Method Of Moments ◽  
Taylor Series Expansion ◽  
Expansion Method ◽  
Particle Coagulation ◽  
Average Volume ◽  
One Dimensional ◽  
The One ◽  
And Diffusion ◽  
Dimensional Domain ◽  
Series Expansion Method

In the study a simple model of coagulation for nanoparticles is developed to study the effect of diffusion on the particle coagulation in the one-dimensional domain using the Taylor-series expansion method of moments. The distributions of number concentration, mass concentration, and particle average volume induced by coagulation and diffusion are obtained.

Urban conflict and voting pattern : some tentative generalizations from the last state election in Hamburg

Res Publica ◽  
1995 ◽  
Vol 37 (2) ◽  
pp. 177-188
Author(s):  
Wolfgang Jagodzinski ◽  
Jürgen Friedrichs ◽  
Hermann Dülmer
Keyword(s):  
Political Parties ◽  
Voter Turnout ◽  
Social Problems ◽  
Right Wing ◽  
Housing Conditions ◽  
Ecological Analysis ◽  
Voting Participation ◽  
Political Dissatisfaction ◽  
The One ◽  
Urban Conflict

During the last years immigration has aggravated the socialproblems in many disadvantaged urban districts. High proportions of foreigners are concentrating in those areas which suffer from unemployment and bad housing conditions. The accumulation of social problems has created a climate of insecurity, social prejudices, and political dissatisfaction. Since political discontent presently is not remedied by the established political parties, it results in low voting participation and increasing proportions of right wing votes. The close connection between the intensity of social problems on the one side, low voter turnout and high success of right extremist parties on the other side, is empirically established by an ecological analysis of the recent state elections in Hamburg.

Innovation

2019 ◽  
pp. 438-510
Author(s):  
Sheilagh Ogilvie
Keyword(s):  
Technological Innovation ◽  
Diffusion Of Innovations ◽  
Spatial Clustering ◽  
Technological Knowledge ◽  
The Other ◽  
Market Failures ◽  
New Techniques ◽  
The One ◽  
And Diffusion

This chapter addresses how guilds dealt with technological innovation. Innovation is a final sphere in which market failures are widespread in premodern economies, as in modern ones. On the one hand, contemporaries frequently complained that guilds blocked new techniques and practices. On the other hand, guilds were in a position to generate cartel rents, and this might have encouraged their members to incur the costs of invention. Guilds might also have encouraged diffusion of technological knowledge through compulsory apprenticeship, mandatory travelling by journeymen, or the spatial clustering of practitioners. Guilds could also affect innovation unintentionally by things they did for other reasons. Guilds thus provide a rich context for investigating the role of different institutional mechanisms in encouraging the invention and diffusion of innovations.

Computational Thinking and Mathematics

2016 ◽  
pp. 853-865
Author(s):  
Thiago Schumacher Barcelos ◽  
Ismar Frango Silveira
Keyword(s):  
Problem Solving ◽  
Computer Science ◽  
Basic Education ◽  
National Curriculum ◽  
Computational Thinking ◽  
Thinking Skills ◽  
Educational Systems ◽  
Curriculum Guidelines ◽  
And Mathematics ◽  
The One

On the one hand, ensuring that students archive adequate levels of Mathematical knowledge by the time they finish basic education is a challenge for the educational systems in several countries. On the other hand, the pervasiveness of computer-based devices in everyday situations poses a fundamental question about Computer Science being part of those known as basic sciences. The development of Computer Science (CS) is historically related to Mathematics; however, CS is said to have singular reasoning mechanics for problem solving, whose applications go beyond the frontiers of Computing itself. These problem-solving skills have been defined as Computational Thinking skills. In this chapter, the possible relationships between Math and Computational Thinking skills are discussed in the perspective of national curriculum guidelines for Mathematics of Brazil, Chile, and United States. Three skills that can be jointly developed by both areas are identified in a literature review. Some challenges and implications for educational research and practice are also discussed.

scholarly journals Decolonizing Psychological Science: Introduction to the Special Thematic Section

2015 ◽  
Vol 3 (1) ◽  
pp. 213-238 ◽  
Author(s):  
Glenn Adams ◽  
Ignacio Dobles ◽  
Luis H. Gómez ◽  
Tuğçe Kurtiş ◽  
Ludwin E. Molina
Keyword(s):  
Cultural Psychology ◽  
Special Section ◽  
Liberation Psychology ◽  
Global Order ◽  
Psychological Science ◽  
Diffusion Of Knowledge ◽  
Thematic Section ◽  
Racialized Violence ◽  
Economic Injustice ◽  
And Diffusion

Despite unprecedented access to information and diffusion of knowledge across the globe, the bulk of work in mainstream psychological science still reflects and promotes the interests of a privileged minority of people in affluent centers of the modern global order. Compared to other social science disciplines, there are few critical voices who reflect on the Euro-American colonial character of psychological science, particularly its relationship to ongoing processes of domination that facilitate growth for a privileged minority but undermine sustainability for the global majority. Moved by mounting concerns about ongoing forms of multiple oppression (including racialized violence, economic injustice, unsustainable over-development, and ecological damage), we proposed a special thematic section and issued a call for papers devoted to the topic of "decolonizing psychological science". In this introduction to the special section, we first discuss two perspectives—liberation psychology and cultural psychology—that have informed our approach to the topic. We then discuss manifestations of coloniality in psychological science and describe three approaches to decolonization—indigenization, accompaniment, and denaturalization—that emerge from contributions to the special section. We conclude with an invitation to readers to submit their own original contributions to an ongoing effort to create an online collection of digitally linked articles on the topic of decolonizing psychological science.

Discover, Instrumentalize, Monopolize: Fidesz’s Three-Step Blueprint for a Populist Take-over of Referendums

2019 ◽  
Vol 33 (3) ◽  
pp. 705-732 ◽  
Author(s):  
Pepijn van Eeden
Keyword(s):  
Political Parties ◽  
Eastern Europe ◽  
Agenda Setting ◽  
Direct Democracy ◽  
Social Economic ◽  
The Other ◽  
Economic Disparities ◽  
The One ◽  
Political Apathy ◽  
Risky Option

This article assesses the referendums in Hungary in 2004, 2008, and 2016 diachronically. The review is framed by two competing liberal parliamentary approaches to direct democracy: A useful democratic corrective to the distortions of particracy, or a risky option leading to tyranny of the majority? Rather than choosing sides, this article shows how the conundrum conceals another, more interesting question: Which are the constraints under which the liberal parliamentary viewpoint shifts from the one to the other? Theorizing on post-democracy and populism provides a provisional answer: A consensualized, “post-political” parliament is key, as this, in combination with widening social-economic disparities, incentivizes illiberal populist parties to harness referendums, which prompts liberal parliamentarianists to change their minds. The referendums in 2004, 2008, and 2016 in Hungary substantiate this suspicion. Taken together, they offer a step-by-step blueprint for how, in a thoroughly postpolitical situation, a referendum evolves into a perfect catalyst for populists on their road to power, enabling them with (a) agenda-setting; (b) an explosive emphasis on popular legitimacy; (c) arousing voluntarism, while luring opponents into campaigning for boycott and political apathy; (d) combining social equalitarianism with identarian protectionism, and most importantly; (e) bypassing parliament itself. This article is part of the special cluster titled Political Parties and Direct Democracy in Eastern Europe, guest-edited by Sergiu Gherghina.

The economies (and diseconomies) of distributed technologies

Kybernetes ◽  
2017 ◽  
Vol 46 (5) ◽  
pp. 767-785 ◽  
Author(s):  
Sergio Barile ◽  
Cristina Simone ◽  
Mario Calabrese
Keyword(s):  
Knowledge Integration ◽  
Analytical Framework ◽  
Loss Of Control ◽  
Content Type ◽  
Organizational Perspective ◽  
Consistent Model ◽  
Adoption And Diffusion ◽  
The One ◽  
And Diffusion ◽  
Distributed Technologies

Purpose This paper aims to focus on distributed technologies with the aim of highlighting their economic-organizational dimensions. In particular, the contribution first presents a deeper understanding of the nature and the dynamics of the economies and diseconomies that arise from the adoption and diffusion of distributed technologies. Second, it aims to shed light on the increasing tension between the hierarchy-based model of production and peer-to-peer (p2p) production, which involves the pervasive diffusion of distributed technologies. Design/methodology/approach Adopting an economic-organizational perspective, which is deeply rooted in the related extant literature, an analytically consistent model is developed to simultaneously take into account the following variables: adoption density independent variable) and economies of knowledge integration and organizational diseconomies (the costs of a loss of control and the costs of organizational decoupling and recoupling) as dependent variables. Findings Distributed technologies allow access to a large quantity and a wide variety of cognitive slacks that have not been possible until now. In doing so, they are leading the transition towards p2p. This is an emerging production paradigm that is characterized – with respect to mass production – by a shift in the relative importance of cognitive slack in comparison with tangible slack. Nevertheless, the unrestrainable diffusion of distributed technologies is not neutral for organizations. On the one hand, these technologies allow for the integration of economies of knowledge, and on the other hand, they involve organizational diseconomies that should not be ignored by managers and researchers. Originality/value This paper fills a gap in the literature by developing a consistent analytical framework that simultaneously takes into account the economies of knowledge integration and potential organizational diseconomies (the costs of coordination and the loss of control) that arise from the adoption and diffusion of distributed technologies.

Numerical analysis of the convection and diffusion of solutes to roots

Soil Research ◽  
1967 ◽  
Vol 5 (2) ◽  
pp. 149 ◽  
Author(s):  
JB Passioura ◽  
MH Frere
Keyword(s):  
Differential Equation ◽  
Partial Differential Equation ◽  
Porous Medium ◽  
Diffusion Coefficient ◽  
Numerical Analysis ◽  
Average Concentration ◽  
Soil System ◽  
Dry Soil ◽  
The One ◽  
And Diffusion

A numerical method is given for solving a partial differential equation describing the radial movement of solutes through a porous medium to a root. Computer programmes based on the method were prepared and used to obtain solutions of the equation for an idealized root-soil system in which a solute is transported to the root by convection but is not taken up by the root. Various patterns of water uptake were considered, the most complex being a diurnally varying uptake from soil in which the water content is decreasing. The solutions suggest that the maximum build-up of solute at the surface of a root is trivial if the root is growing in a medium such as agar, in which the diffusion coefficient of the solute is high, but may be considerable, with a concentration up to 10 times higher than the average concentration in the soil solution, when the root is growing in a fairly dry soil. The application of the method to systems other than the one considered in detail is discussed.

scholarly journals Parties’ Issue Emphasis Strategies on Facebook

2019 ◽  
Vol 34 (1) ◽  
pp. 96-123 ◽  
Author(s):  
Wojciech Rafałowski
Keyword(s):  
Political Parties ◽  
Party System ◽  
The Other ◽  
The Political ◽  
Issue Ownership ◽  
The One ◽  
Issue Emphasis

In recent years, a significant amount of research has been devoted to theorising and explaining parties’ vote-seeking behaviours with regard to emphasising certain policy domains and ignoring others. These strategies are largely determined by the parties’ issue ownership and the context of the competition. In this article, I explore the interaction between these two groups of factors, that is, how a given party type and its role within the party system moderate the political actor’s responsiveness to various unfolding events. The study uses a collection of Facebook posts published by the official profiles of some of the Polish political parties. I demonstrate that the competitors develop distinct strategies of issue emphasis in accordance with the incentives coming from the events that occur on the one hand and their strengths and weaknesses related to certain issue domains on the other.

scholarly journals Diffusion of Personalized E-Government Services among Dutch Municipalities

2011 ◽  
Vol 7 (3) ◽  
pp. 21-37 ◽  
Author(s):  
Vincent M.F Homburg ◽  
Andres Dijkshoorn
Keyword(s):  
Service Delivery ◽  
Binary Logistic Regression ◽  
Policy Innovation ◽  
Special Focus ◽  
Political Responsibility ◽  
Government Services ◽  
Electronic Service ◽  
Adoption And Diffusion ◽  
The One ◽  
And Diffusion

This article describes the trend of personalization in electronic service delivery, with a special focus on municipal electronic service delivery in the Netherlands. Personalization of electronic services refers to the one-to-one citizen orientation using authentication, profiling and customization techniques. The percentage of Dutch municipalities offering services through personalized electronic counters has increased from 14% (2006) to 28% (2009). Using binary logistic regression analyses of 2008 survey data, it is concluded that personalization is positively associated with size of municipalities but not with e-government and policy innovation statements, nor with explicit political responsibility with respect to e-government development. Based on these findings, alternative explanations for the adoption and diffusion of personalized e-government services are suggested.

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