758 resultados para Alternative Conceptions. Genetic content. Cell and chromosome. Elementary school. Potentially Meaningful Teaching Unit (PMTU)


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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Educação, Programa de Pós-Graduação em Educação, 2016.

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Two studies were conducted to predict physical activity in school-aged children. Study 1 tested the utility of an integrated model in predicting physical activity (PA) intention and behavior-the theory of planned behavior (TPB) and self-efficacy theory. Six hundred and forty-five New Zealand children (aged 11-13 years) completed measures corresponding to the integrated model and a self-reported measure of PA one week later. Perceived behavioral control (PBC) and subjective norm were the two strongest predictors of intentions. Task efficacy and barrier efficacy were the two strongest predictors of PA. A second study (Study 2) was conducted to determine whether the self-efficacy measures could discriminate objectively measured PA levels. Sixty-seven Canadian children (aged 11-13 years) completed task and barrier self-efficacy measures. The following week, children classified as 'high' (n = 11) and 'lower' (n = 7) for both task and barrier efficacy wore an Actical® monitor for seven consecutive days to provide activity-related energy expenditure (AEE) data. Results showed that children with high efficacy expended significantly greater AEE than their lower efficacious counterparts. Findings from these two studies provide support for the use of self-efficacy interventions as a potentially useful means of increasing PA levels among school-aged children.

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Explaining appears to dominate primary teachers’ understanding of mathematical reasoning when it is not confused with problem solving. Drawing on previous literature of mathematical reasoning, we generate a view of the critical aspects of reasoning that may assist primary teachers when designing and enacting tasks to elicit and develop mathematical reasoning. The task used in this study of children’s reasoning is a number commonality problem. We analysed written and verbal samples of reasoning gathered from children in grades 3 and 4 from three primary schools in Australia and one elementary school in Canada to map the variation in their reasoning. We found that comparing and contrasting was a critical aspect of forming conjectures when generalising in this context, an action not specified in frameworks for generalising in early algebra. The variance in children’s reasoning elicited through this task also illuminated the difference between explaining and justifying.

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The current study assessed the association between anxiety symptoms and sleep in 90 school-aged children, aged 6-12 years (Mage = 108 months, 52.2% male). The Children's Sleep Habits Questionnaire (CSHQ) and 14 nights of actigraphy were used to assess sleep. Anxiety was assessed using the Spence Children's Anxiety Scale (SCAS). A significant association was found between parent-reported anxiety symptoms and current sleep problems (i.e., CSHQ total scores ≥ 41). An examination of SCAS subscales identified a specific association between generalized anxiety disorder (GAD) symptoms and increased parental sleep concerns, including sleep onset delay, sleep duration, and daytime sleepiness. Regarding actigraphy, whilst anxiety was not associated with average sleep variables, a relationship was identified between anxiety and the night-to-night variability of actigraphy-derived sleep schedules.

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Teachers’ emotional competences and well-being are fundamentally important to developing and maintaining positive relationships in the classroom, which can contribute to improving pedagogical action. References to several intervention programmes are found in the literature with the purpose of changing the practices, attitudes, and beliefs of teachers, who show evidence of a significant improvement in personal competences and school success. Therefore, an intervention with teachers integrating a broader line of research was carried out, involving parents and students as well. It consists of a programme which promotes personal (well-being and emotional intelligence) and professional (acquiring differentiated pedagogical strategies) competences over a period of six months, followed by a focus group to assess the contribution of an empowerment programme with the intention of promoting school success. The preliminary action-research study involved 10 teachers of two classes with students who show disruptive behaviour in the 7th year in a school in the central region of Portugal. The teachers, of both genders, are aged between 44 and 52, and belong to several recruitment groups. The main research question was: “To what extent does an intervention programme, intended for training, contribute to developing personal and professional competences in teachers of the 3rd cycle of basic education?” The teachers revealed a rather favourable view of their participation in the programme, considering that it helped them perceive some behaviours and practices which are less adjusted to their action in the classroom with these students (shouting, scolding, etc.). From the pretest to the posttest, statistically significant differences were found in assessing their own emotions and in their use. Signs of improvement in positive affections and satisfaction with life were also found, though with a marginal significance. The preliminary data in this empowerment programme for these educational agents points towards the importance of teachers’ awareness in what concerns their pedagogical action, as well as the need to change traditional pedagogical practices that contribute to discouraging students towards learning. The need to establish closer and systematic contact with the students and their families in order to meet their needs and expectations was also highlighted.

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This thesis is about young students’ writing in school mathematics and the ways in which this writing is designed, interpreted and understood. Students’ communication can act as a source from which teachers can make inferences regarding students’ mathematical knowledge and understanding. In mathematics education previous research indicates that teachers assume that the process of interpreting and judging students’ writing is unproblematic. The relationship between what students’ write, and what they know or understand, is theoretical as well as empirical. In an era of increased focus on assessment and measurement in education it is necessary for teachers to know more about the relationship between communication and achievement. To add to this knowledge, the thesis has adopted a broad approach, and the thesis consists of four studies. The aim of these studies is to reach a deep understanding of writing in school mathematics. Such an understanding is dependent on examining different aspects of writing. The four studies together examine how the concept of communication is described in authoritative texts, how students’ writing is viewed by teachers and how students make use of different communicational resources in their writing. The results of the four studies indicate that students’ writing is more complex than is acknowledged by teachers and authoritative texts in mathematics education. Results point to a sophistication in students’ approach to the merging of the two functions of writing, writing for oneself and writing for others. Results also suggest that students attend, to various extents, to questions regarding how, what and for whom they are writing in school mathematics. The relationship between writing and achievement is dependent on students’ ability to have their writing reflect their knowledge and on teachers’ thorough knowledge of the different features of writing and their awareness of its complexity. From a communicational perspective the ability to communicate [in writing] in mathematics can and should be distinguished from other mathematical abilities. By acknowledging that mathematical communication integrates mathematical language and natural language, teachers have an opportunity to turn writing in mathematics into an object of learning. This offers teachers the potential to add to their assessment literacy and offers students the potential to develop their communicational ability in order to write in a way that better reflects their mathematical knowledge.

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This chapter describes two cases, one from Germany and the other from Australia in which science journals were used in classrooms that adopted an inquiry-based approach to teaching science. We are interested in the following research questions:1. In what ways do teachers use journals to promote student learning of science?2. What evidence of reasoning is present in the cases in respect of the use of learning journals?3. When and in which form is feedback given in journals?

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This paper presents data from a study of five English primary schools. It examines some of the challenges associated with school autonomy and collaboration for state primary schools amid the uncertainty and complexity of governance in the present English education context. The paper features the voices of six leaders gathered from interviews that explored their thoughts about the academies movement. It highlights their fears that academisation, and particularly the imperative to join a large academy chain, will undermine their autonomy as individual schools. Accepting of the inevitability of academisation and the forms of network governance this reform offers, it highlights the head teachers’ moves to ensure their autonomy in terms of determining the timing and type of conversion. In relation to these moves, the paper reiterates the significance within effective collaboratives of member schools experiencing a sense of ownership, a common purpose, shared responsibility for students and their learning and relations of trust. The paper considers some of the tensions arising in this space in relation to competition, collaboration and school vulnerability.