Analysis of lexical quality and its relation to writing quality for 4th grade,primary school students in Chile

Few studies have addressed vocabulary quality in developing writing skill in Spanish. Even less addressed it within the Chilean educational system. The specific objective of this study was to characterize, using a comprehensive set of indicators, the quality of the vocabulary produced by Chilean 4th grade students. Based on a national writing survey, a sample of 2056 texts written by 685 students was collected (narrative, persuasive, and informative texts). Current literature defines lexical quality as a composite of diverse factors that, while distinct, are interrelated. To represent the properties of the vocabulary, a set of indicators were selected: (a) lexical diversity; (b) lexical sophistication; and (c) lexical density. Using multilevel modeling (students and schools as levels 1 and 2) to explain a global writing score we found that diversity was a significant determinant for narrative and persuasive texts, density was a significant determinant for the three genres and sophistication was a significant determinant for narrative and expository text. In addition, indicators related to gender and socioeconomic conditions were only significant determinants of narrative stories. The parts of speech most often used also varied according to the purpose of each text. In all genres, words had a short extension and were very sensitive to the input presented in the stimuli. These results imply a significant challenge to this education system: how to promote the development of vocabulary in all children in order to support language learning.     

“Don’t give up on me”: critical mentoring pedagogy for the classroom building students’ community cultural wealth

This one-year ethnographic case study focused on students of color from a West Coast High School who faced a variety of academic challenges. Collectively, they shared perspectives on school improvement, and among the recommendations was the importance of mentorship in the classroom to develop students’ aspirational, navigational, and informational capital for academic resiliency, high expectations, and success. This article highlights the perspectives of multiple stakeholders, such as students and teachers, on the qualities of mentorship practices. Using these data, a framework was developed to promote mentoring as an interrelated process in classroom instruction to ignite a new perspective on school reform. In this particular context, this study concludes that these students of color viewed mentorship as a critical component that was often missing in their high school careers. In an effort to improve students’ experiences in the classroom, this article argues that teachers must develop critical mentoring skills, beyond what is traditionally considered as mentoring services, as a pedagogical tool to assist students to overcome their academic challenges and achieve school success.     

Rocking of a rigid block freestanding on a flat pedestal

The seismic protection of objects contained within museums is a topic of great interest, especially with reference to how they are displayed or stored. This problem is the same as that of a large class of non-structural components, such as mechanical and electrical hospital and laboratory equipment that could lose their functionality because of earthquakes. Statues and ceramics simply supported on the floor represent a significant set of case. In some cases, like the Bronzes of Riace, isolation systems have been developed. However, in general museum exhibits are not equipped with devices capable of mitigating the oscillations induced by possible earthquakes. The case study of a marble statue placed on a freestanding squat rigid pedestal is examined. The system of algebraic differential equations governing the problem has been derived and included in an ad-hoc numerical procedure. It is shown that the insertion of a squat rigid body with low frictional resistance at the lower interface with the floor, and high frictional resistance at the upper interface with the artifact significantly reduces the amplitude of the rocking response. As a result the artifact rocks without sliding on the rigid base that slides without rocking with respect to the floor. The numerical analysis performed can be a tool to help in the choice of the optimal friction values in the surfaces of the flat block, designed as a simple isolation system.     

Technology as ‘a human practice with social meaning’–a new scenery for engineering education

In a world sustained and interconnected by technology, people make choices. Therefore, they have to consider that technology is subject to analysis and interpretation because it is designed by humans with varied histories, experiences and cultures. To generate an understanding of the technological phenomenon, this article proposes to view the technology as a human practice, with social meaning and an attending change in classical technology-related education. The hidden resumé of the professors, the development of contents and didactic methods to be used in the educational process are fundamental elements in the appropriation of knowledge. Modifying these elements requires paradigmatic shifts, especially in the education of engineers, which would have to be focused on the knowledge acquisition and capabilities to allow an adequate practice of the technology management.     

Introduction to the Treatment of Non-Linear Effects Using a Gravitational Pendulum

We show that the treatment of pendulum movement, other than the linear approximation,may be an instructive experimentally based introduction to the physics of non-lineareffects. Firstly the natural frequency of a gravitational pendulum is measured as functionof its amplitude. Secondly forced oscillations of a gravitational pendulum are investigatedexperimentally without limiting amplitudes. By this arrangement new phenomena, thebistability and the jump-effect, can be observed. In the case of bistability the drivengravitational pendulum can oscillate in two different stable modes. Either it oscillateswith a small amplitude and approximately in phase with the exciting torque or it oscillateswith a larger amplitude and approximately anti-phase. The jump effect is the spontaneoustransition from one mode of oscillation to the other. Both effects can be demonstrated andexplained.     

Governing through parents: a genealogical enquiry of education policy and the construction of neoliberal subjectivities in England

In this paper we explore the various spaces and sites through which the figure of the parent is summoned to inhabit and perform market norms and practices in the field of education in England. Since the late 1970s successive governments have called on parents to enact certain duties and obligations in relation to the state. These duties include adopting and internalizing responsibility for all kinds of risks, liabilities and inequities formerly managed by the Keynesian welfare state. In this paper we examine how English parents are compelled to embody certain market norms and practices as they navigate the field of education. Adopting genealogical enquiry and policy discourse analysis as our methodology, we explore how parents across three policy sites or spaces are constructed as objects and purveyors of utility and ancillaries to marketization. This includes a focus on how parents are summoned as (1) consumers or choosers of education services; (2) governors and overseers of schools and (3) producers and founders of schools.     

The moral choices children attribute to adults and to peers: Implications for moral acquisition

Thirty-six children (half 6–8 years old and half 10–12) in Northeast Brazil heard three hypothetical dilemmas featuring a choice between telling the truth and keeping a promise. Each dilemma was initiated by a different kind of lie: an exculpable pro-social lie (teasing), a lie in the personal domain (hiding) and a lie in the service of an anti-social act (cheating). They were asked to choose between truth and promise, and to attribute choices to adults and to peers. More younger than older children chose truth on all three dilemmas. Both regression and SSA analysis showed that “peer-judgments” predicted own judgments on all three dilemmas, but “adult-judgments” did so only on the dilemma, which featured an exculpable lie and involved no adults. The findings may be interpreted as supporting either (a) a constructivist account of development or (b) a learning account that features implicit processes.     

Teaching Chronobiology and Sleep Habits in School and University

ABSTRACT— Early morning school schedules are in the opposite direction to the sleep–wake cycle in adolescence and early adulthood. This conflict leads to sleep deprivation and irregular patterns whose consequences are scarcely explored. This article discusses the effects of three educational experiences with high school students, parents, teachers, and medical students. The first experience was developed with high school students in Natal, Brazil, to determine whether sleep habits would improve with increased awareness. Positive effects were observed in some aspects of sleep knowledge and practices. In the second experience in Atlanta, GA, sleep education activities were presented to middle and high school teachers, parents, and students to emphasize the importance of sleep. In the third program in Murcia, Spain, undergraduate medical students were introduced to chronobiology of sleep by a practical exercise that pointed out to what extent they shared most of adolescent sleep characteristics. Educational chronobiological experiences about sleep are essential to develop healthy sleep habits in the general population, particularly in students.     

Short-term economic incentives in new product development

This study investigates the use of variable compensation to motivate new product development managers and its impact upon the performance of new product development projects. Using data from 56 projects, the paper examines how technology-intensive firms compensate their product development managers. The study finds a positive and significant relationship between the use of short-term economic incentives and project performance; however, the slope of this relationship is not linear and its intensity (slope) decreases as the percentage of variable compensation increases; furthermore, the relationship is contingent on the level of project uncertainty. The results also indicate that higher project uncertainty is associated with a lower level of variable compensation. Moreover, organizational structure, through its effect upon the allocation of uncertainty among organizational participants, also affects the level of variable compensation.     

Leadership development programs: investing in school principals

Considering that some university-based principal preparation programmes may not be properly training principals for leadership roles, “grow your own” leadership development programmes have become more popular across the US. This study provides a contribution to previous research in terms of the specific components a district leadership development programme may incorporate into its curriculum in order to positively influence school principals’ effectiveness as school leaders. A purposeful sample of second-, third- and fourth-year campus principals working in a large urban school district in the south-west region of the US who had participated in their district’s leadership development programme were administered the Principal Effectiveness Survey and participated in semi-structured interviews to examine the influence of the programme on the participants’ effectiveness as leaders. Survey results indicated that principals consider training activities related to human capital, executive leadership, school culture and strategic operations as having a “high” influence on their effectiveness as school leaders. In addition, interview data revealed the importance of supervisor support and building relationships with peers as critical to their continued success as leaders.