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CONCEITUALIZAÇÃO EM REDE: UMA PROPOSTA PARA O ENSINO DE FÍSICA TÉRMICA EM NÍVEL MÉDIO À LUZ DA TEORIA DOS CAMPOS CONCEITUAIS DE VERGNAUDBolfe, Lurdes Eliane Rothmund 19 May 2009 (has links)
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Previous issue date: 2009-05-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The present work concerns on planning and development of a proposal for teaching Physics,
based on the Theory of Conceptual Fields of Vergnaud, developed from the theme tobacco
production and implemented in the classroom, with the support of teaching material aided by
audiovisual resources, based on the model of three teaching stages by Delizoicóv and
Angotti. The proposal aimed the network conceptualization development in the conceptual
field of Thermal Physics. The concepts treated in that proposal are temperature, heat,
thermal expansion and contraction, thermometers of liquid in glass, conduction, convection
and heat irradiation. The support material, developed in this paper, consists of a teaching
module that comes with an own production digital video disk. The proposal was applied in a
group of twelve students from the second grade of high school, from Escola Estadual de
Eduacação Básica Padre Benjamin Copetti, Sobradinho, RS, from September to November
2008. In this period, it was tried to identify their potential and limitations, to assist the
students, both the learning of physical concepts as the building of relationships between
concepts, and know the importance of the issue tobacco production, in the student s opinion,
and identify possible relation they have built between concept and knowledge, involved in the
theme chosen. An analysis of this experiment was made from the content of messages,
obtained from the instruments of data collection type questionnaire, terms of field (from
students) and images video shot. The results indicate that students seemed to be involved
and active participants in the tasks presented, indicating acceptance in the methodology of
work. During the interaction with the tasks, some students identified both the presence of the
same concept in different physical processes, as the same process that involves more than a
physical concept, what can be understood as evidence of student development in the
conceptualization system of some concepts in the field of Thermal Physics, from processes
of reality. The obtained results with only a small group of students, are indicative that the
proposal has potential to develop the student conceptualization network, although it is
understood that for some students, the tasks given were not enough to develop the
construction of physical concepts and their inter-relationship in the processes of reality. / O presente trabalho diz respeito ao planejamento e desenvolvimento de uma proposta de
ensino de Física, fundamentada na Teoria dos Campos Conceituais de Vergnaud,
desenvolvida a partir do tema produção de fumo de estufa e implementada na sala de aula
com o apoio de um material de ensino auxiliado por recursos audiovisuais, com base no
modelo dos três momentos pedagógicos de Delizoicóv e Angotti. A proposta teve como
objetivo o desenvolvimento da conceitualização em rede do campo conceitual da Física
Térmica. Os conceitos tratados na referida proposta são temperatura, calor, dilatação e
contração térmica, termômetro de líquido em vidro, condução, convecção e irradiação de
calor. O material de apoio, desenvolvido neste trabalho, consiste em um módulo didático
que acompanha um disco de vídeo digital de produção própria. A proposta foi aplicada junto
a um grupo de doze alunos, da segunda série do ensino médio, da Escola Estadual de
Educação Básica Padre Benjamim Copetti, Sobradinho, RS, entre setembro e novembro de
2008. Nesse período, buscou-se identificar suas potencialidades e limitações, para auxiliar
os alunos, tanto na aprendizagem de conceitos físicos quanto na construção de relações
entre conceitos, bem como conhecer a relevância do tema produção de fumo de estufa, na
opinião dos alunos, e identificar possíveis relações construídas por eles entre conceitos e
conhecimentos científicos, envolvidos no tema escolhido. Uma análise desta experiência foi
feita a partir do conteúdo das mensagens, obtidas em instrumentos de coleta de dados do
tipo questionários, caderno de campo (dos alunos e da professora) e imagens vídeo
filmadas. Os resultados indicam que os alunos mostraram-se envolvidos e participantes
ativos nas tarefas apresentadas, revelando aceitação da metodologia de trabalho. Durante a
interação com as tarefas, alguns alunos identificaram tanto a presença de um mesmo
conceito físico em diferentes processos, quanto que um mesmo processo envolve mais de
um conceito físico, que pode ser entendido como indícios de desenvolvimento no aluno da
conceitualização em rede de alguns conceitos do campo da Física Térmica, partindo de
processos da realidade. Esses resultados, mesmo tendo sido obtidos com apenas um
pequeno grupo de alunos, são indicativos de que a proposta tem potencialidades de
desenvolver no aluno a conceitualização em rede, embora se tenha percebido que, para
alguns alunos, as tarefas apresentadas não foram suficientes para desenvolver a construção
dos conceitos físicos e sua inter-relação a partir de processos da realidade.
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ENSINO DE FÍSICA CENTRADO NA EXPERIÊNCIA VISUAL: UM ESTUDO COM JOVENS E ADULTOS SURDOSSouza, Salete de 28 June 2007 (has links)
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Previous issue date: 2007-06-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This study refers to an empiric research of descriptive qualitative characteristic, which involved the elaboration, conduction and analysis of a Physics teaching proposition for the deaf, centered on visual experience. The teaching proposition combines a Hydrostatics activity sequence, at the introductory level, with the experimentation strategies, learning groups and bilingual communication assisted by an interpreter, in an education perspective that aims at knowledge inclusion. The study aimed to try to comprehend how this proposition is able to assist the deaf in the development of relevant physical concepts, as well as the development of other important subject matters for the integral growth of the human being, having the reference of culture and experience of this community s members. The proposition was elaborated and conducted, centered on visual experience, in a constructivism pedagogical conception of human development, founded on the Vygostky social-historic theory and the meaningful learning theory of Ausubel. Young and adult deaf, who are members of Associação de Pais e Amigos dos Surdos (APAS), of the city of Passo Fundo, RS, have taken part of this research. The participants were assisted at the workshop modality offered by APAS. As data collection instruments, written entries on activity books of the young and adult deaf, the teacher s diary, questionnaires and shootings of the classroom episodes were used. The results analyses were done by using the content analysis method. For the analyses, the young and adult deaf were categorized in groups, namely, Group 1, composed by three students, who attended inclusive classes during their educational journey, without the assistance of an interpreter, and Group 2, composed by two students, who have had a mix of inclusive classes with the assistance of interpreters and classes attended by deaf students only, with teachers who communicated through Brazilian Sign Language. The results of this work indicate that it is possible to include young and adult deaf to knowledge with the use of teaching methods that privilege sight, in which the students demonstrated the possibility of development of conceptual subject matters with the formulation of Hydrostatics introductory concepts, they also demonstrated attitudinal subject matters such as communication, self-esteem, socialization, involvement, interest and curiosity to learn, and proceedings subject matters such as adequate handling of experimental material, measuring executions, observations, regularities examinations, hypothesis confirmation and comparison. As one of the results of this work, a didactical modulus containing the teaching-learning activity sequence used for this study was elaborated and may be used by other teachers as a support to the teaching of the deaf. / Este estudo trata de uma pesquisa empírica de cunho qualitativo descritivo, que envolveu a elaboração, condução e análise de uma proposta de ensino de Física para surdos, centrada na experiência visual. A proposta de ensino combina uma seqüência de atividades de Hidrostática, ao nível introdutório, com as estratégias de experimentação, grupos de aprendizagem e comunicação bilíngüe assistida por uma intérprete, em uma perspectiva de educação que visa à inclusão ao conhecimento. O estudo teve como objetivo compreender como essa proposta pode auxiliar aos surdos no desenvolvimento de conceitos físicos relevantes, bem como no desenvolvimento de outros conteúdos importantes ao crescimento integral do ser humano, tendo-se como referência a cultura e a vivência de membros dessa comunidade. A proposta foi elaborada e conduzida centrada na experiência visual, em uma concepção pedagógica construtivista de desenvolvimento humano, fundamentada na teoria sócio-histórica de Vygotsky e na teoria da aprendizagem significativa de Ausubel. Participaram desta pesquisa jovens e adultos surdos integrantes da Associação de Pais e Amigos dos Surdos (APAS), da cidade de Passo Fundo, RS. Os participantes foram atendidos na modalidade de oficina oferecida pela APAS. Como instrumentos de coleta de dados foram utilizados registros escritos dos jovens e adultos surdos em cadernos de atividades, diário de campo do professor, questionários e imagens vídeo filmadas dos episódios da sala de aula. As análises dos resultados foram feitas utilizando-se o método de análise de conteúdo. Para as análises, os jovens e adultos foram categorizados em grupos, a saber: Grupo 1, composto de três alunos, os quais durante sua trajetória educacional freqüentaram classes inclusivas, sem acompanhamento de intérprete, e o Grupo 2, formado por dois alunos que tiveram sua vida educacional mesclada por classes inclusivas com acompanhamento de intérprete e em classe somente freqüentada por alunos surdos, com professores que utilizavam LIBRAS. Os resultados deste trabalho indicam que é possível incluir jovens e adultos surdos ao conhecimento com a utilização de métodos de ensino que privilegiem a experiência visual. Observou-se que os alunos demonstraram a possibilidade de desenvolvimento de conteúdos conceituais com a formulação de conceitos introdutórios da Hidrostática. Demonstraram também conteúdos atitudinais, como: comunicação, auto-estima, socialização, envolvimento, interesse e curiosidade em aprender; e conteúdos procedimentais, como: manuseio adequado do material experimental, realização de medições, observações, verificação de regularidades, comparação e confirmação de hipóteses. Como um dos resultados deste trabalho, foi elaborado um módulo didático contendo a seqüência de atividades de ensino-aprendizagem utilizada para este estudo, o qual poderá ser utilizado por outros professores como apoio ao ensino de surdos.
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Aperfeiçoamento e aplicação de unidades de ensino potencialmente significativas com foco em grandezas físicas, unidades de medidas e suas relações / Improvement and application of potentially significant teaching units with a focus on physical elements, units of measurements and their relationshipsPraça, Otávio Batista Pereira 31 July 2017 (has links)
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Previous issue date: 2017-07-31 / A proposta deste trabalho é implementar uma metodologia que permita ao aluno vislumbrar uma física que se faça presente em seu dia a dia. Tal metodologia intitulada de Unidades de Ensino Potencialmente Significativas (UEPS), tem embasamento nas teorias de aprendizagem significativa de David Ausubel e de desenvolvimento cognitivo de Jean Piaget. Os aspectos sequenciais para desenvolvimento, aplicação e análise de resultados estão descritos ao longo de todo o trabalho. A UEPS aqui proposta tem como foco de ensino, grandezas físicas, unidades de medidas e suas relações e é dividida em 5 aulas descritas, aplicadas e analisadas para efeito de constatação de efetividade do método. Essa UEPS conta ainda com um aperfeiçoamento visando aumentar a capacidade de concentração, raciocínio lógico e consequentemente desenvolvimento cognitivo através dos módulos de aquecimento lógico. Através dessa metodologia foi possível permitir e constatar um aprendizado em nível bem considerável sobre o processo histórico, aplicação no dia a dia e apresentação de soluções para situações problemas referentes ao tema abordado. Todo o material utilizado se encontra de forma bem detalhada no apêndice A, com textos voltado ao professor e no apêndice B de forma pronta para aplicação em sala de aula. Juntos os apêndices A e B compõe o Produto Educacional ao qual se propõe esse trabalho e tem por finalidade auxiliar na aplicação e no desenvolvimento de novas UEPS no intuito de proporcionar um ensino de Física mais interessante, prazeroso e eficaz. / The proposal of this work is to implement a methodology that allows the student to glimpse a physics that will be present in their daily life. This methodology, entitled Potentially Significant Teaching Units (PSTU), is based on David Ausubel's significant learning theories and Jean Piaget's cognitive development. The sequential aspects for development, application and analysis of results are described throughout the work. The PSTU presented is focused on teaching, physical quantities, units of measures and their relationships and is divided into 5 classes described, applied and analyzed for effectiveness of the method. This PSTU also has an improvement in order to increase the capacity of concentration, logical reasoning and consequently cognitive development through the logical heating modules. Through this methodology it was possible to allow and verify a considerable learning about the historical process, application in the day to day and presentation of solutions to problems situations related to the topic subject. All the material used is detailed in Appendix A, with texts aimed at the teacher and in Appendix B, ready for application in the classroom. Together Appendices A and B compose the Educational Product to which this work is proposed and is intended in the implementation and development of new PSTU in order to provide a more interesting, pleasurable and effective Physics teaching.
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Mezioborové vztahy fyziky a chemie v přírodovědném vzdělávání / Interdisciplinary relations of physics and chemistry in science educationKonečný, Martin January 2016 (has links)
Title: Interdisciplinary relations of physics and chemistry in science education Abstract: This master's degree thesis deals with the topic of interdisciplinary relations of chemistry and physics in science education. According to the review, to conveniently integrate physics and chemistry the appropriate topics and approaches were selected. The thesis includes teaching materials and worksheets to the three topics (Evolution of the Universe and the Origin of Elements, Luminescence and Composition and Properties of Matter) that are suitable for integration of physics and chemistry. The teaching material "Evolution of the Universe and the Origin of the Elements" includes a study text for teachers and a shorter study text for pupils. The teaching material "Luminescence" is based on an independent research done by pupils with their own crafted UV-lamp, completed with the facts included in a powerpoint presentation. The teaching material "Composition and Properties of Matter" consists of three parts (The paraffin, The Candle and The Properties of Selected Organic Substances) and is designed for an independent research done by pupils. Listed study materials were checked by teachers during meetings and seminars. The thesis also includes an evaluation of listed study materials by an expert group of high school...
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Kyvadlo nejen z pohledu střední školy / Pendulum not only from the high school point of viewChamrová, Martina January 2021 (has links)
The diploma thesis is divided into five chapters. The first chapter is devoted to the history and usage of pendulums with focus on the development of measurement of time and gravitational acceleration. The second chapter deals with the concept of pendulum from a theoretical perspective at all levels of the Czech educational system, including a research in textbooks, collection of questions and problems, and scientific articles. In the third chapter, the results of the research of sources of inspiration for simple real- life experiments, applets and simulations, and laboratory work are presented. The fourth chapter is focused on the theoretical background of the four selected models of pendulums, and the last chapter is devoted to simple experiments with these selected models. For each experiment, a videorecording is available on the enclosed DVD. This thesis is suitable for all physics teachers, as well as for students of teaching physics. However, it may also serve as a motivation for students in optional courses of high school physics. 1
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Laboration och lärande : En litteraturöversikt om laborativa inslag i fysikundervisningen för de lägre årskurserna.Stjernhammar, Lizette, Ågren, My January 2020 (has links)
Syftet med denna litteraturstudie är att ta reda på vår frågeställning Vad säger forskningen om kvaliteter och brister i hur de laborativa inslagen i fysikundervisning genomförs i de lägre årskurserna, samt vad säger forskningen om huruvida eleverna lär sig fysik i dessa inslag? För att besvara frågeställningen och uppnå litteraturstudiens syfte har vi systematiskt och manuellt tagit fram, analyserat och sammanställt vetenskapliga studier om ämnet naturvetenskap med inriktning på fysik och då framförallt laborativ undervisning i de lägre årskurserna, det vill säga F-3. Resultatet visar att det finns en del brister i undervisningen inom detta ämnesområde såsom elevernas lärande och genomförandet i de laborativa inslagen i undervisningen. Det blir ett problem för lärare att tolka styrdokumenten såsom det kanske är tänkt men även att begrepp inom ämnet är viktiga att ha i åtanke och att använda dessa på rätt sätt i elevernas undervisning för optimalt lärande. En aspekt är lärarnas självförtroende och kunskapsinsikt. Detta är relevant att veta då det är lärarna som ska kunna undervisa eleverna inom fysikämnet, som är kopplat till vår frågeställning. Vi har valt att ha lite bredare perspektiv för att sen kunna smalna av det i examensarbete 2 eftersom vi vill ha en grund att stå på inför detta. Vårt förslag på vidare forskning blir att studera de lägre årskurserna och då specifikt inom naturvetenskap och fysik och hur lärarna arbetar med detta laborativt.
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Exploring the Neural Mechanisms of Physics LearningBartley, Jessica E 08 November 2018 (has links)
This dissertation presents a series of neuroimaging investigations and achievements that strive to deepen and broaden our understanding of human problem solving and physics learning. Neuroscience conceives of dynamic relationships between behavior, experience, and brain structure and function, but how neural changes enable human learning across classroom instruction remains an open question. At the same time, physics is a challenging area of study in which introductory students regularly struggle to achieve success across university instruction. Research and initiatives in neuroeducation promise a new understanding into the interactions between biology and education, including the neural mechanisms of learning and development. These insights may be particularly useful in understanding how students learn, which is crucial for helping them succeed. Towards this end, we utilize methods in functional magnetic resonance imaging (fMRI), as informed by education theory, research, and practice, to investigate the neural mechanisms of problem solving and learning in students across semester-long University-level introductory physics learning environments. In the first study, we review and synthesize the neuroimaging problem solving literature and perform quantitative coordinate-based meta-analysis on 280 problem solving experiments to characterize the common and dissociable brain networks that underlie human problem solving across different representational contexts. Then, we describe the Understanding the Neural Mechanisms of Physics Learning project, which was designed to study functional brain changes associated with learning and problem solving in undergraduate physics students before and after a semester of introductory physics instruction. We present the development, facilitation, and data acquisition for this longitudinal data collection project. We then perform a sequence of fMRI analyses of these data and characterize the first-time observations of brain networks underlying physics problem solving in students after university physics instruction. We measure sustained and sequential brain activity and functional connectivity during physics problem solving, test brain-behavior relationships between accuracy, difficulty, strategy, and conceptualization of physics ideas, and describe differences in student physics-related brain function linked with dissociations in conceptual approach. The implications of these results to inform effective instructional practices are discussed. Then, we consider how classroom learning impacts the development of student brain function by examining changes in physics problem solving-related brain activity in students before and after they completed a semester-long Modeling Instruction physics course. Our results provide the first neurobiological evidence that physics learning environments drive
the functional reorganization of large-scale brain networks in physics students. Through this collection of work, we demonstrate how neuroscience studies of learning can be grounded in educational theory and pedagogy, and provide deep insights into the neural mechanisms by which students learn physics.
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Pedagogers uppfattningar om fysikundervisning i förskolan : En enkätstudie om hur pedagoger i en medelstor kommun i Mellansverige undervisar i ämnet fysik / Educators´perceptions of physics teaching in preschool : A questionnaire study on how educators in a medium-sized municipality in central Sweden teach the subject of physicsAmcoff, Emelie, Sejdiu Seferi, Valdete January 2022 (has links)
The purpose of this study is to investigate how educators in preschool view teaching physics and how it is carried out together with the children. To find out about this, the study has been conducted with help of digital questionnaires where all educators in a medium-sized municipality in central Sweden have been given the opportunity to answer. The result shows that most of the educators in the municipality feel that they miss knowledge and competence in conducting physics education in preschool. It appears that the educators who have competence in physics, find it difficult to conduct the teaching further if they are “on their own” in the team with that competence. It also appears that many educators want conditions such as tips, inspiration and competence development in order to be able to conduct good physics education together with the children. When it comes to physics education in preschool, we see that educators find it challenging to integrate that sort of education into preschool everyday life. We can also see that educators feel that it is difficult to interpret the goals of the preschool curriculum with physics and natural sciences. It appears that there is not as much planned teaching as spontaneous teaching, because it is a challenge to conduct planned teaching. The physical phenomena that educators work with the most are water, magnetism and different seasons. Finally, we see that there is a great willingness on the part of educators to develop their knowledge in how to conduct good physics education together with the children at the preschool. / Syftet med denna studie är att undersöka hur pedagoger i förskolan ser på fysikundervisning och hur den genomförs tillsammans med barnen. För att ta reda på detta har studien genomförts med hjälp av digitala enkäter där alla pedagoger i en medelstor kommun i Mellansverige fått möjligheten att svara. Resultatet visar att pedagoger i kommunen upplever att de saknar kunskap och kompetens kring att bedriva fysikundervisning i förskolan. Det framkommer att de pedagoger som har kompetens i fysik, upplever det svårt att bedriva undervisningen vidare om ingen mer i arbetslaget har samma kompetens. Det framgår också att många önskar förutsättningar som tips, inspiration och kompetensutveckling för att kunna bedriva bra fysikundervisning tillsammans med barnen. När det gäller fysikundervisning i förskolan ser vi att pedagoger upplever det utmanande att integrera fysikundervisning i förskolans vardag. Vi kan också se att pedagoger känner att det är svårt att tolka målen i förskolans läroplan med kopplingar till fysik och naturvetenskap. Det framkommer att det inte bedrivs lika mycket planerad undervisning som det bedrivs spontan undervisning. Detta för att pedagoger upplever det som en utmaning att bedriva planerad undervisning. De fysikaliska fenomen som pedagogerna arbetar med mest är vatten, magnetism och årstider. Avslutningsvis ser vi att det finns en stor vilja hos pedagoger att utveckla sina kunskaper kring hur de ska bedriva bra fysikundervisning tillsammans med barnen på förskolan, samt att pedagoger vill ha en kontinuerlig kompetensutbildning.
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”Att läsandet inte bara är en bisak när barnen är som tröttast på vilan […]” : En kvalitativ intervjustudie av pedagogers uppfattning av fysikundervisning i samverkan med barnlitteratur / “Reading is not just a side issue when the children are most tired at resting time [ … ]” : A qualitative interview study of pedagogues’ perception of physics education in relation to children’s literatureVallberg, Gina, Nyman, Ida January 2024 (has links)
Syftet med studien är att synliggöra förskollärares uppfattningar och erfarenheter av att implementera fysikundervisning med utgångspunkt i barnlitteratur. För att synliggöra pedagogernas uppfattningar användes kvalitativa semistrukturerade intervjuer, där informanterna bestod av sju aktiva legitimerade förskollärare. Analysen utgick från en fenomenografisk teoriansats i kombination med litterära föreställningsvärldar. Resultatet i studien visar att förskollärarna har goda förutsättningar för att implementera barnlitteratur i förskolans undervisning, men att uppkomna tillfällen inte alltid utnyttjas. Samtidigt visar resultatet att förskollärarna upplever sina egna fysikkunskaper som bristfälliga, vilket begränsade fysikundervisningen tillsammans med barnen. Förutsättningar såsom kompetens och självsäkerhet med avseende på fysikämnet har betydelse för hur och i vilken omfattning pedagogerna använder barnlitteraturen som pedagogiskt verktyg. I samband med intervjuerna ombads informanterna att exemplifiera möjlig eller befintlig fysikundervisning med utgångspunkt i barnlitteratur. Frågor som detta togs emot positivt då samtliga uttryckte att de utmanades men också inspirerades att fånga upp de fysikaliska fenomen som uppstår i vardagen och i alla typer av litteratur. Litteraturen i förskolan uppfattades ha en central plats på grund av gott samarbete med bibliotek, region och tillgänglig bokbuss. Dock hade inte fysiken en lika självklar plats i barnens utbildning som barnlitteraturen. / The purpose of the study is to visualize preschool teachers' perceptions and experiences of implementing physics education based on children's literature. In order to make perceptions visible, qualitative semi-structured interviews were used where the informants who participated consisted of seven active licensed preschool teachers. The analysis was based on a phenomenographic theory approach in combination with envisioning literature. The results of the study show that preschool teachers have good conditions for implementing children's literature in preschool teaching, but that opportunities are not always used. At the same time, the results show that the preschool teachers perceive their own physics knowledge as deficient, which limited the teaching of physics together with the children. Prerequisites such as competence and self-confidence with regard to the subject of physics are important for the teachers use children's literature as a pedagogical tool. In connection with the interviews, the informants were asked to exemplify possible or existing physics teaching based on children's literature. Questions like this were received positively as everyone expressed that they were challenged but also inspired to capture the physical phenomena that occur in everyday life and in all types of literature. Literature in the preschool was perceived to have a central place due to good cooperation with the library, the region and the available book bus. However, physics did not have as obvious a place in children's education as children's literature.
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Entwicklung eines Testinstrumentes zur Erfassung von Kompetenzen im Umgang mit MessunsicherheitenSchulz, Johannes 23 February 2022 (has links)
Die Arbeit mit Messunsicherheiten ist essentiell in Naturwissenschaften und Technik. Vor diesem Hintergrund befasst sich diese Arbeit in der ersten Forschungsfrage damit, wie die Inhalte eines validierten Sachstrukturmodells zum Thema Messunsicherheiten (Hellwig 2012) operationalisiert und gemessen werden können.
Dazu wurden die Konzepte des Modells in Form von Kompetenzen beschrieben und zugehörige Multiple-Choice Testaufgaben formuliert. Anschließend wurden zufällig ausgewählte Testaufgaben einem Expertenrating unterzogen. Die Ergebnisse zeigen ein Fleiss Kappa, Congers Kappa und Lights Kappa von jeweils mindestens 0,86, was für eine sehr gute Passung der Testaufgaben zu den Kompetenzen spricht.
Weiter wurden die Testaufgaben mit 1299 Studierenden erprobt und die 15 (bzw. 10) Testaufgaben zu jedem Konzept einzeln ausgewertet. Als Grundlage diente das eindimensionale dichotome Rasch-Modell. Zur Auswertung wurden u.a. Gütekriterien zur Modellkonformität, lokalen Unabhängigkeit und Subgruppeninvarianz betrachtet.
Als Ergebnis wurden bei einer EAP-Reliabilität von 0,61 bis 0,81 zu jedem Konzept 7 - 12 Testaufgaben identifiziert, die zur Nutzung empfohlen werden können. Für einzelne Testaufgaben wurden außerdem Änderungsvorschläge herausgearbeitet.
In einer zweiten Forschungsfrage wurde die Struktur der zu den Konzepten formulierten Testaufgaben mit einer konfirmatorischen Faktorenanalyse untersucht. Die Ergebnisse zeigen, dass die Konzepte innerhalb einer Dimension des Sachstrukturmodells als einzelne Faktoren aufgefasst werden können. In zwei Fällen können auch gemeinsame Faktoren für zwei der Konzepte einer Dimension empirisch und inhaltlich begründet werden.
Insgesamt stellt diese Arbeit damit für den Bereich der Messunsicherheiten ein theoriegeleitetes, inhaltlich validiertes und empirisch geprüftes Testinstrument zur Verfügung, mit dem zielgerichtet und differenziert in großer Breite Kompetenzen im Umgang mit Messunsicherheiten von Lernenden erhoben werden können. / Working with measurement uncertainties is essential in science and engineering. On the basis of a validated model that structures the content in the field of measurement uncertainties (Hellwig 2012) this thesis looks in its first research question at how the concepts proposed by the model can be operationalized and measured.
Therefore, the concepts given by the model are formulated by learning progressions and operationalized by multiple choice test items. A random sample of the items then was assessed by six experts in the field of teaching measurement uncertainties. The results show a Fleiss kappa, Congers kappa and Lights kappa of 0.86 or higher for the assignment of the items to the given learning progressions which indicates a very good matching.
Furthermore, the items were evaluated in a survey with 1299 university students and each set of 15 (resp. 10) items per concept was analyzed by using the dichotomous one-dimensional Rasch model. Amoung others criteria concerning model conformity, local independence and subgroup invariance were tested. As a result, for each concept 7 to 12 items could be identified which suit the given criteria. The EAP-reliability came up from 0.61 to 0.81 (considering all items of the concepts).
In a second research question, the empirical results were evaluated by a confirmatory factor analysis. The results show that the itemsets for the concepts of the model could be interpreted as individual factors. In two cases for two concepts (in one dimension proposed by the model) the assumption of one factor can also be empirically and content-related justified.
Overall this thesis presents an empirically-validated assessment tool to probe students' understanding of measurement uncertainties according to the content structure model. The tool captures a broad spectrum in the field of measurement uncertainties in very detailed resolution and can therefore help to evaluate learning progressions and teaching instructions.
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