668 resultados para ethical science education for young children


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The aim of this article is to discuss and problematize how teachers in civics in upper secondary school construct drama, and how it relates to teaching, and students’ knowledge formation in civics. A study like this is important as the aesthetic subjects are becoming more prominent in young people’s everyday life at the same time as school by recent reformations is increasing the adjustment to efficiency and measurability. The theoretical framework is built on discursive psychology, which emanates from social constructionist and poststructuralist theory. Data consists of interviews with four upper secondary teachers in civics. Findings show that drama can be a valuable resource for teaching and learning civics, but also a problem when it comes to assessment. The position of the student as an object, teaching as entertainment and the domination of text is also discussed and problematized. Findings are considered as problematic as drama in civics, in relation to assessment, rather enhances a text-focused three-subject school than offering an alternative challenge

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The challenging effects of globalization upon the nation-state have been a recurrent theme in the social science discourse since the 1990’s. Nationally organized education is also seen as challenged by new demands originating from globalization. In this article it is argued that ‘nation-state’ and ‘national identity’ are highly relevant concepts when discussing a citizenship education that seeks to develop a civic ethos with, potentially, a global reach. It is further argued that the understanding of such an ethos would benefit significantly from incorporating the role of political trust since trust has been identified as a main feature of the social capital that makes democracy work. Three themes are brought together: national identity and identification, the importance for democracy of political trust and the challenges citizenship education face when carried out in a national context but intended to manage issues that go far beyond the reach of the nation-state. The importance of citizenship education is discussed using recent research on the Swedish citizenship education classroom.

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This article examines upper secondary school students’ understanding of historical empathy. The focus is on how and to what degree they displayed in their essays historical contextualisation, perspective taking and affective connection. The study was based on the essays written by 96 students, using resource-material that comprised background information and historical sources. The students reflected on the controversial issue of Finnish children who were sent to Sweden during World War II. All the three dimensions of empathy were expressed at some level, but contextualisation was most often superficial. The dimension the students managed best was perspective taking, which was related to the affective dimension of the topic. They also applied psychological terminology to this historical issue. It could be concluded from the findings that students need instruments for and have interest in dealing with sensitive and affective historical issues.

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The purpose of the current thesis is to develop a better understanding of the interaction between Spanish and Quichua in the Salcedo region and provide more information for the processes that might have given rise to Media Lengua, a ‘mixed’ language comprised of a Quichua grammar and Spanish lexicon. Muysken attributes the formation of Media Lengua to relexification, ruling out any influence from other bilingual phenomena. I argue that the only characteristic that distinguishes Media Lengua from other language contact varieties in central Ecuador is the quantity of the overall Spanish borrowings and not the type of processes that might have been employed by Quichua speakers during the genesis of Media Lengua. The results from the Salcedo data that I have collected show how processes such as adlexification, code-mixing, and structural convergence produce Media Lengua-type sentences, evidence that supports an alternative analysis to Muysken’s relexification hypothesis. Overall, this dissertation is developed around four main objectives: (1) to describe the variation of Spanish loanwords within a bilingual community in Salcedo; (2) to analyze some of the prominent and recent structural changes in Quichua and Spanish; (3) to determine whether Spanish loanword use can be explained by the relationship consultants have with particular social categories; and (4) to analyze the consultants’ language ideologies toward syncretic uses of Spanish and Quichua. Overall, 58% of the content words, 39% of the basic vocabulary, and 50% of the subject pronouns in the Salcedo corpus were derived from Spanish. When compared to Muysken’s description of highlander Quichua in the 1970’s, Spanish loanwords have more than doubled in each category. The overall level of Spanish loanwords in Salcedo Quichua has grown to a level between highlander Quichua in the 1970’s and Media Lengua. Similar to Spanish’s lexical influence in Media Lengua, the increase of Spanish borrowings in today’s rural Quichua can be seen in non-basic and basic vocabularies as well as the subject pronoun system. Significantly, most of the growth has occurred through forms of adlexification i.e., doublets, well-established borrowings, and cultural borrowings, suggesting that ‘ordinary’ lexical borrowing is also capable of producing Media Lengua-type sentences. I approach the second objective by investigating two separate phenomena related to structural convergence. The first examines the complex verbal constructions that have developed in Quichua through Spanish loan translations while the second describes the type of Quichua particles that are attached to Spanish lexemes while speaking Spanish. The calquing of the complex verbal constructions from Spanish were employed when speaking standard Quichua. Since this standard form is typically used by language purists, I argue that their use of calques is a strategy of exploiting the full range of expression from Spanish without incorporating any of the Spanish lexemes which would give the appearance of ‘contamination’. The use of Quichua particles in local varieties of Spanish is a defining characteristic of Quichuacized Spanish, spoken most frequently by women and young children in the community. Although the use of Quichua particles was probably not the main catalyst engendering Media Lengua, I argue that its contribution as a source language to other ‘mixed’ varieties, such as Media Lengua, needs to be accounted for in descriptions of BML genesis. Contrary to Muysken’s representation of relatively ‘unmixed’ Spanish and Quichua as the two source languages of Media Lengua, I propose that local varieties of Spanish might have already been ‘mixed’ to a large degree before Media Lengua was created. The third objective attempts to draw a relationship between particular social variables and the use of Spanish loanwords. Whisker Boxplots and ANOVAs were used to determine which social group, if any, have been introducing new Spanish borrowings into the bilingual communities in Salcedo. Specifically, I controlled for age, education, native language, urban migration, and gender. The results indicate that none of the groups in each of the five social variables indicate higher or lower loanword use. The implication of these results are twofold: (a) when lexical borrowing occurs, it is immediately adopted as the community-wide norm and spoken by members from different backgrounds and generations, or (b) this level of Spanish borrowing (58%) is not a recent phenomenon. The fourth and final objective draws on my ethnographic research that addresses the attitudes of syncretic language use. I observed that Quichuacized Spanish and Hispanicized Quichua are highly stigmatized varieties spoken by the country’s most marginalized populations and families, yet within the community, syncretic ways of speaking are in fact the norm. It was shown that there exists a range of different linguistic definitions for ‘Chaupi Lengua’ and other syncretic language practices as well as many contrasting connotations, most of which were negative. One theme that emerged from the interviews was that speaking syncretic varieties of Quichua weakened the consultant’s claim to an indigenous identity. The linguistic and social data presented in this dissertation supports an alternative view to Muysken’s relexification hypothesis, one that has the advantage of operating with well-precedented linguistic processes and which is actually observable in the present-day Salcedo area. The results from the study on lexical borrowing are significant because they demonstrate how a dynamic bilingual speech community has gradually diversified their Quichua lexicon under intense pressure to shift toward Spanish. They also show that Hispanicized Quichua (Quichua with heavy lexical borrowing) clearly arose from adlexification and prolonged lexical borrowing, and is one of at least six identifiable speech styles found in Salcedo. These results challenge particular interpretations of language contact outcomes, such as, ones that depict sources languages as discrete and ‘unmixed.’ The bilingual continuum presented in this thesis shows on the one hand, the range of speech styles that are accessible to different speakers, and on the other hand, the overlapping, syncretic features that are shared among the different registers and language varieties. It was observed that syncretic speech styles in Salcedo are employed by different consultants in varied interactional contexts, and in turn, produce different evaluations by other fellow community members. In the current dissertation, I challenge the claim that relexification and Media Lengua-type sentences develop in isolation and without the influence of other bilingual phenomena. Based on Muysken's Media Lengua example sentences and the speech styles from the Salcedo corpus, I argue that Media Lengua may have arisen as an institutionalized variant of the highly mixed "middle ground" within the range of the Salcedo bilingual continuum discussed above. Such syncretic forms of Spanish and Quichua strongly resemble Media Lengua sentences in Muysken’s research, and therefore demonstrate how its development could have occurred through several different language contact processes and not only through relexification.

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People, animals and the environment can be exposed to multiple chemicals at once from a variety of sources, but current risk assessment is usually carried out based on one chemical substance at a time. In human health risk assessment, ingestion of food is considered a major route of exposure to many contaminants, namely mycotoxins, a wide group of fungal secondary metabolites that are known to potentially cause toxicity and carcinogenic outcomes. Mycotoxins are commonly found in a variety of foods including those intended for consumption by infants and young children and have been found in processed cereal-based foods available in the Portuguese market. The use of mathematical models, including probabilistic approaches using Monte Carlo simulations, constitutes a prominent issue in human health risk assessment in general and in mycotoxins exposure assessment in particular. The present study aims to characterize, for the first time, the risk associated with the exposure of Portuguese children to single and multiple mycotoxins present in processed cereal-based foods (CBF). Portuguese children (0-3 years old) food consumption data (n=103) were collected using a 3 days food diary. Contamination data concerned the quantification of 12 mycotoxins (aflatoxins, ochratoxin A, fumonisins and trichothecenes) were evaluated in 20 CBF samples marketed in 2014 and 2015 in Lisbon; samples were analyzed by HPLC-FLD, LC-MS/MS and GC-MS. Daily exposure of children to mycotoxins was performed using deterministic and probabilistic approaches. Different strategies were used to treat the left censored data. For aflatoxins, as carcinogenic compounds, the margin of exposure (MoE) was calculated as a ratio of BMDL (benchmark dose lower confidence limit) to the aflatoxin exposure. The magnitude of the MoE gives an indication of the risk level. For the remaining mycotoxins, the output of exposure was compared to the dose reference values (TDI) in order to calculate the hazard quotients (ratio between exposure and a reference dose, HQ). For the cumulative risk assessment of multiple mycotoxins, the concentration addition (CA) concept was used. The combined margin of exposure (MoET) and the hazard index (HI) were calculated for aflatoxins and the remaining mycotoxins, respectively. 71% of CBF analyzed samples were contaminated with mycotoxins (with values below the legal limits) and approximately 56% of the studied children consumed CBF at least once in these 3 days. Preliminary results showed that children exposure to single mycotoxins present in CBF were below the TDI. Aflatoxins MoE and MoET revealed a reduced potential risk by exposure through consumption of CBF (with values around 10000 or more). HQ and HI values for the remaining mycotoxins were below 1. Children are a particularly vulnerable population group to food contaminants and the present results point out an urgent need to establish legal limits and control strategies regarding the presence of multiple mycotoxins in children foods in order to protect their health. The development of packaging materials with antifungal properties is a possible solution to control the growth of moulds and consequently to reduce mycotoxin production, contributing to guarantee the quality and safety of foods intended for children consumption.

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It is important to assess young children's perceived Fundamental Movement Skill (FMS) competence in order to examine the role of perceived FMS competence in motivation toward physical activity. Children's perceptions of motor competence may vary according to the culture/country of origin; therefore, it is also important to measure perceptions in different cultural contexts. The purpose was to assess the face validity, internal consistency, test–retest reliability and construct validity of the 12 FMS items in the Pictorial Scale for Perceived Movement Skill Competence for Young Children (PMSC) in a Portuguese sample. Methods Two hundred one Portuguese children (girls, n = 112), 5 to 10 years of age (7.6 ± 1.4), participated. All children completed the PMSC once. Ordinal alpha assessed internal consistency. A random subsamples (n = 47) were reassessed one week later to determine test–retest reliability with Bland–Altman method. Children were asked questions after the second administration to determine face validity. Construct validity was assessed on the whole sample with a Bayesian Structural Equation Modelling (BSEM) approach. The hypothesized theoretical model used the 12 items and two hypothesized factors: object control and locomotor skills. Results The majority of children correctly identified the skills and could understand most of the pictures. Test–retest reliability analysis was good, with an agreement ration between 0.99 and 1.02. Ordinal alpha values ranged from acceptable (object control 0.73, locomotor 0.68) to good (all FMS 0.81). The hypothesized BSEM model had an adequate fit. Conclusions The PMSC can be used to investigate perceptions of children's FMS competence. This instrument can also be satisfactorily used among Portuguese children.

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This study presents a contribution to the conceptual and terminological clarification of the concept of teaching competence, as well as for the identification of a competencial framework of competences for science teaching at a primary education level, having in mind educating citizens for the 21st century as scientific literates. The proposed framework was developed based on an intensive literature review and on the contributions emerging from a shared reflection between researchers in science education (teachers educators), future primary teachers (pre-service teachers) and in-service primary teachers.

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Relatório de Estágio apresentado à Escola Superior de Educação do Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Educação Pré- Escolar e Ensino do 1.º Ciclo do Ensino Básico.

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Preschool can have positive effects on the development of a healthy lifestyle. The present study analysed to what extent different conditions, structures and behavioural models in preschool and family-children's central social microsystems-can lead to differences in children's health resources. Using a cross-sectional mixed methods approach, contrast analyses of "preschools with systematic physical activity programmes" versus "preschools without physical activity programmes" were conducted to assess the extent to which children's physical activity, quality of life and social behaviour differ between preschools with systematic and preschools without physical activity programmes. Differences in children's physical activity according to parental behaviour were likewise assessed. Data on child-related outcomes and parent-related factors were collected via parent questionnaires and child interviews. A qualitative focused ethnographic study was performed to obtain deeper insight into the quantitative survey data. Two hundred and twenty seven (227) children were interviewed at 21 preschools with systematic physical activity programmes, and 190 at 25 preschools without physical activity programmes. There was no significant difference in children's physical activity levels between the two preschool types (p = 0.709). However, the qualitative data showed differences in the design and quality of programmes to promote children's physical activity. Data triangulation revealed a strong influence of parental behaviour. The triangulation of methods provided comprehensive insight into the nature and extent of physical activity programmes in preschools and made it possible to capture the associations between systematic physical activity promotion and children's health resources in a differential manner.

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This paper examines the relationship between the state and the individual in relation to an aspect of mundane family life – the feeding of babies and young children. The nutritional status of children has long been a matter of national concern and infant feeding is an aspect of family life that has been subjected to substantial state intervention. It exemplifies the imposition upon women the ‘biologico-moral responsibility’ for the welfare of children (Foucault 1991b). The state’s attempts to influence mothers’ feeding practices operate largely through education and persuasion. Through an elaborate state-sponsored apparatus, a strongly medicalised expert discourse is disseminated to mothers. This discourse warns mothers of the risks of certain feeding practices and the benefits of others. It constrains mothers through a series of ‘quiet coercions’ (Foucault 1991c) which seek to render them self-regulating subjects. Using data from a longitudinal interview study, this paper explores how mothers who are made responsible in these medical discourses around child nutrition, engage with, resist and refuse expert advice. It examines, in particular, the rhetorical strategies which mothers use to defend themselves against the charges of maternal irresponsibility that arise when their practices do not conform to expert medical recommendations.

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Antecedentes: Las dificultades alimentarias son problemas de los niños para comer con efectos en su crecimiento y desarrollo. La prevalencia de dificultades alimentarias está entre 25-45% en niños con desarrollo normal y hasta 80% en niños con retraso del desarrollo. La conducta alimentaria del niño depende de las prácticas del cuidador. Objetivo: Determinar la relación entre dificultades alimentarias de niños de 2 a 4 años de dos Centros de Desarrollo Infantil Privados Urbanos de Cuenca y los factores de riesgo: estrategias del cuidador para la alimentación de los niños y niñas, el tipo y nivel de instrucción del cuidador. Método: Estudio cuantitativo transversal realizado en 228 niños de 2 a 4 años de los Centros de Desarrollo Infantil Urbanos de Cuenca: CEIAP de la Universidad del Azuay y los Angelitos de la FEUE, aplicando a los cuidadores dos cuestionarios CCDA-N1-APS y el FSQ. Resultados: La cuidadora principal es la madre (79,4%), el nivel de instrucción del cuidador fue el superior (51,3%). La prevalencia de dificultades alimentarias fue del 28%. No existe relación estadística entre dificultades alimentarias (p>0,05), y el tipo y nivel de instrucción del cuidador. Las estrategias del cuidador que demostraron relación con dificultades alimentarias y factores de riesgo son: estructura a la hora de comer, permitirle tener juguetes durante comidas, puede elegir la cantidad de alimento que quiere, presionarle a comer mas de lo que debe, permitirle comer y beber durante todo el día (p<0,05); el tener un esquema de alimentación es factor protector. Los datos concuerdan con la literatura. Conclusiones: Es necesario evaluar las estrategias del cuidador para la alimentación y dificultades alimentarias. Palabras clave: DIFICULTADES ALIMENTARIAS, ESTRATEGIAS ALIMENTARIAS, CUIDADOR, MADRE, INSTRUCCIÓN.

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O presente relatório tem como finalidade apresentar o trabalho realizado no âmbito das unidades curriculares da Prática de Ensino Supervisionada em Pré-Escolar e em 1.º Ciclo do Ensino Básico, inseridas no Mestrado em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico na Universidade de Évora, com enfoque na temática: “Conceções Alternativas em Ciência”. A PES decorreu em dois contextos distintos, sendo primeiramente realizada numa sala de Educação Pré-Escolar na Escola Básica Galopim de Carvalho e por fim, numa turma de 2.º ano do 1.º Ciclo do Ensino Básico, na Escola Básica dos Canaviais. Ambas pertencem ao Agrupamento n.º 4 de Évora. A investigação realizada consistiu em identificar e valorizar as conceções alternativas das crianças/alunos; promover a construção de conhecimentos a partir das conceções alternativas; usar estratégias de mudança concetual que visassem criar um confronto entre as conceções alternativas e os conceitos científicos. Esta investigação permitiu a confirmação de que é importante, no ensino das ciências, serem promovidas atividades de mudança concetual, apesar de alguns investigadores afirmarem que estas conceções alternativas podem ser um obstáculo na aprendizagem de novos conhecimentos; ABSTRACT: This report aims to present the work done within the course units of “Supervised Teaching Practice in Pre-School and 1st Basic Education” in Masters in “Pre-School Education and Training of 1st Basic Education” at the University of Évora, focusing on the theme “Alternative conceptions in Science”. The PES held in two different contexts: first performed in a pre-school education classroom at “Escola Básica Galopim de Carvalho” and second in a second year class of 1st Basic Education at “Escola Básica dos Canaviais”. Both schools belong to “Agrupamento n. º 4 of Évora”. The research was carried out to identify and value the alternative conceptions of children/students; promote the construction of knowledge from alternative conceptions; use conceptual change strategies which aimed to create a confrontation between alternative conceptions and scientific concepts. This investigation has confirmed that it is important in science education to promote conceptual change activities, as some researchers claim that these alternative conceptions can be an obstacle in learning/developing new skills.

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Purpose: To assess the knowledge, attitudes and practices of parents towards antibiotics use for upper respiratory tract infections (URTIs) in Jordan. Methods: A cross-sectional study was carried out at 10 private outpatients’ pediatric clinics across Amman-Jordan from September to December 2013. During the study period, 1329 parents of young children who fulfilled the inclusion criteria and agreed to participate were interviewed, and completed a validated structured questionnaire. Results: A large proportion of parents (903, 68 %) believed that weather change was the main cause of acute URTIs in their children. Although 1098 (82.8 %) of parents were aware that the recurrent use of antibiotics leads to a decrease in effectiveness due to bacterial resistance, 859 (64.6 %) of the respondents reported that they would give antibiotics without prescription. Fathers (135, 40.2 %), were significantly more aware that URTIs follow its natural course without antibiotic administration compared to mothers (N = 327, 32.9 %), respectively (p = 0.005). Conclusion: There is a lack of adequate parental knowledge concerning the use and misuse of antibiotics in children in Jordan. National publicity campaign should be mounted to improve awareness. Furthermore, existing laws should be enforced to prevent parents from purchasing antibiotics over-thecounter (OTC).

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The overall purpose of this collected papers dissertation was to examine the utility of a cognitive apprenticeship-based instructional coaching (CAIC) model for improving the science teaching efficacy beliefs (STEB) of preservice and inservice elementary teachers. Many of these teachers perceive science as a difficult subject and feel inadequately prepared to teach it. However, teacher efficacy beliefs have been noted as the strongest indicator of teacher quality, the variable most highly correlated with student achievement outcomes. The literature is scarce on strong, evidence-based theoretical models for improving STEB.^ This dissertation is comprised of two studies. STUDY #1 was a sequential explanatory mixed-methods study investigating the impact of a reformed CAIC elementary science methods course on the STEB of 26 preservice teachers. Data were collected using the Science Teaching Efficacy Belief Instrument (STEBI-B) and from six post-course interviews. A statistically significant increase in STEB was observed in the quantitative strand. The qualitative data suggested that the preservice teachers perceived all of the CAIC methods as influential, but the significance of each method depended on their unique needs and abilities. ^ STUDY #2 was a participatory action research case study exploring the utility of a CAIC professional development program for improving the STEB of five Bahamian inservice teachers and their competency in implementing an inquiry-based curriculum. Data were collected from pre- and post-interviews and two focus group interviews. Overall, the inservice teachers perceived the intervention as highly effective. The scaffolding and coaching were the CAIC methods portrayed as most influential in developing their STEB, highlighting the importance of interpersonal relationship aspects in successful instructional coaching programs. The teachers also described the CAIC approach as integral in supporting their learning to implement the new inquiry-based curriculum. ^ The overall findings hold important implications for science education reform, including its potential to influence how preservice teacher training and inservice teacher professional development in science are perceived and implemented. Additionally, given the noteworthy results obtained over the relatively short durations, CAIC interventions may also provide an effective means of achieving improvements in preservice and inservice teachers’ STEB more expeditiously than traditional approaches.^