El medio cultural y la formación de los conceptos científicos: una aproximación lingüística

Resumen

Una visión constructiva de la adquisición de los conceptos científicos implica conocer todos aquellos factores de tipo cultural que influyen en su aprendizaje. En este trabajo pretendemos justificar la relevancia del análisis semántico del uso del lenguaje por el alumno en la caracterización de dichos factores.

Las tendencias actuales de la Filosofía del lenguaje y de la Psicología del aprendizaje coinciden en admitir el carácter interactivo de la relación entre lenguaje y pensamiento. Al mismo tiempo, los resultados de numerosas investigaciones muestran la interrelación entre lenguaje y ambiente cultural. Nuestra hipótesis subraya la importancia del análisis semántico del lenguaje ordinario y científico del alumno con el objetivo de identificar acepciones muy específicas que permiten estudiar la interacción cultura-aprendizaje.     

The Anatomy of Academic Rigor: The Story of One Institutional Journey

The National Survey of Student Engagement (NSSE) draws from student feedback to gauge the level of academic challenge at particular institutions (Kuh 2009). Inspired by attempts to understand the implications of NSSE data on other campuses (Payne et al. 2005), a cross-disciplinary research group at our institution developed a multidimensional model of academic rigor. We argue that learning is most rigorous when students are actively learning meaningful content with higher-order thinking at the appropriate level of expectation within a given context. The model allows instructors and institutional decision-makers to aim towards increased levels of academic rigor in classrooms, departments, and across campus.     

Contributions of Learning Through Analogies to the Construction of Secondary Education Pupils’ Verbal Discourse about Chemical Change

This article analyzes the relationship between pupils’ level of understanding of the analogies proposed in class while working with a model of chemical change and their competence at constructing a coherent verbal discourse of that model in both its macroscopic and submicroscopic representations. The study participants were 35 pupils in their 3rd year of compulsory secondary education (14–15 years of age) who had been studying chemical change for several weeks in their subject of Physics and Chemistry. The results suggested that the pupils generally understood the proposed analogies quite well, and that a good proportion of them assimilated adequately the verbal discourse inherent in the proposed model of chemical change. There was also a statistically significant association between modeling and analogical thinking. In particular, the pupils with greater understanding of the analogies being considered were also those who tended to show a greater ability to verbalize the model of chemical change and reason with it when solving the tasks they had been set. These results concur with the literature by suggesting that a link exists between analogical thinking and modeling, and that learning with analogies has a positive influence on the construction of the chemical change model.     

A Multitude of Hopes: Humanism and Subjectivity in E.P. Thompson and Antonio Negri

E.P. Thompson's work on working-class formation is widely recognized as one of the crucial contributions to Marxist historiography in the twentieth century. His emphasis on notions of agency and subjectivity is intimately linked to a radical recasting of the socialist agenda against the objectivism of an earlier, ‘orthodox’, Marxism and of a later, and more theoretically sophisticated, structuralism. Thompson's conception of working-class agency as the primary element in historical materialism parallels Antonio Negri's theorization of proletarian subjectivity as an expansive process of collective self-constitution. In particular, Negri's analysis of ‘power’ as an autonomous dynamic of social creation offers an essential development of Thompson's ideas and a fresh theoretical template for the political re-actualization of radical humanism.     

Identification of histological threshold concepts in health sciences curricula: Students' perception

Students' metacognitive skills and perceptions are considered important variables for high-quality learning. In this study, students' perceptions were used to identify histological threshold concepts (integrative, irreversible, transformative, and troublesome) in three health sciences curricula. A specific questionnaire was developed and validated to characterize students' perceptions of histological threshold concepts. A sample of 410 undergraduate students enrolled in the dentistry, medicine, and pharmacy degree programs participated in the study. Concepts assessed in the study were clustered to ten categories (factors) by exploratory and confirmatory factor analysis. Concepts linked to tissue organization and tissue functional states received the highest scores from students in all degree programs, suggesting that the process of learning histology requires the integration of both static concepts related to the constituent elements of tissues and dynamic concepts such as stem cells as a tissue renewal substrate, or the euplasic, proplasic and retroplasic states of tissues. The complexity of integrating static and dynamic concepts may pose a challenging barrier to the comprehension of histology. In addition, several differences were detected among the students in different degree programs. Dentistry students more often perceived morphostructural concepts as threshold concepts, whereas medical students highlighted concepts related to two-dimensional microscopic identification. Lastly, pharmacy students identified concepts related to tissue general activity as critical for the comprehension and learning of histology. The identification of threshold concepts through students' perceptions is potentially useful to improve the teaching and learning process in health sciences curricula.     

Designing an accompanying ecosystem to foster entrepreneurship among agronomic and forestry engineering students. Opinion and commitment of university lecturers

In the Higher School of Agronomic and Forestry Engineering of the University of Cordoba, a collective project conceived as an ‘ecosystem to support and accompany entrepreneurs’ has been proposed. The approach aims to spread and consolidate the entrepreneurial spirit and to respond to the demands of possible stakeholders involved in the whole process of training, as well as the subsequent integration of graduates into the labour market. Putting into practice this initiative, which involves multiple actors, is a complex and difficult task. For this reason, prior to its implementation, the authors considered it necessary to listen to main stakeholders' opinions and evaluate their degree of commitment and the requirements they consider important for the viability and sustainability of the initiative. This paper focuses on the faculty's opinions, gathered by means of a survey conducted with the entire faculty (N?=?128, response rate?=?45%) and semi-structured interviews held with 20 members of the School board. The results suggest that there is a general consensus on the suitability of this collective project and that there is a core of teachers willing to get involved. Evidently, guidelines need to be produced to facilitate taking on such tasks. However, the main drawbacks are related with the conflict between formal requirements of professor professional profile and the steps needed to establish the ecosystem.     

Examining Arizona’s Policy Response Post Flores v. Arizona in Educating K–12 English Language Learners

This article provides an analysis of Arizona’s policy response in educating English language learners by conducting a narrative review. A critical Latina/o theory approach was used to analyze the data. This study reveals 5 salient policy responses: (a) severely limit bilingual education, (b) develop controversial funding solutions, (c) implement a segregated 4-hr English language development block, (d) mandate structured English immersion–focused teacher preparation, and (e) develop disputed identification and classification instruments. The available data suggest that these policies have negatively impacted the educational experience and academic attainment of English language learners.     

Vocational profiles and internship quality among Portuguese VET students

The provision of workplace-based experiences (internships) is an important component of the training program for students attending vocational education courses. The purpose of this study was to clarify the relationship between internship quality and students vocational development, considering students’ vocational profiles, in a sample of 346 twelfth grade students from southern Portugal, using a longitudinal design. Results show that internship quality is associated with the career development of students, mainly concerning the process of career exploration, and has an effect that appears to be more pronounced for some of the clusters. Implications for career intervention are discussed.     

The power of networks in the marketing of pedagogical ideals: the Dalton Plan in Great Britain (1920–1925)

ABSTRACT

The Dalton Plan is well known in educational historiography. But there are also unanswered questions such as: how is it possible that a pedagogical experiment begun in the United States in February 1920 had, by the month of March, already come to be known first hand by a visiting English educator? The objective in this article is to find an explanation for the rapid expansion and huge popularity of the Dalton Plan in Great Britain in the early 1920s. This is attempted theoretically by using the concepts ‘educational network’ and ‘pedagogical product’, and empirically by using unexplored documents and correspondence concerning Helen Parkhurst’s trips to Great Britain. It ends with the conclusion that, in Great Britain, as early as 1922, the Dalton Plan became a commercial product that was exploited in similar ways to the work of Maria Montessori.