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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

O ensino de sistemática e taxonomia biológica no ensino médio da rede estadual no município de São Carlos - SP / Teaching of systematics and biological taxonomy in high school of the state in the county São Carlos - SP

Liporini, Thalita Quatrocchio [UNESP] 26 February 2016 (has links)
Submitted by Thalita Quatrocchio Liporini null (tha_liporini86@yahoo.com.br) on 2016-04-16T18:17:43Z No. of bitstreams: 1 LIPORINI_THALITA_VERSÃO_FINAL_dissertacao (1).pdf: 2310518 bytes, checksum: a36dd4cda66295d8882088696870900e (MD5) / Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-04-19T13:20:31Z (GMT) No. of bitstreams: 1 liporini_tq_me_bauru.pdf: 2310518 bytes, checksum: a36dd4cda66295d8882088696870900e (MD5) / Made available in DSpace on 2016-04-19T13:20:31Z (GMT). No. of bitstreams: 1 liporini_tq_me_bauru.pdf: 2310518 bytes, checksum: a36dd4cda66295d8882088696870900e (MD5) Previous issue date: 2016-02-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A presente dissertação teve como propósito investigar como os professores de Biologia compreendem, organizam e ensinam a Sistemática e a Taxonomia Biológica na disciplina de Biologia da rede estadual no município de São Carlos – SP. Para tanto, partimos da hipótese que os conteúdos de Biologia são trabalhados de modo memorístico e fragmentado e que o ensino dos conteúdos trazidos pela Sistemática e Taxonomia durante os anos do Ensino Médio podem ser norteadores e necessários para que haja a contextualização e compreensão das demais áreas que a Biologia contempla, entre elas a Zoologia, a Botânica, Evolução e de todo o conhecimento biológico. Desse modo, o objetivo geral desta pesquisa é verificar como se dá a organização, o entendimento e o trabalho em sala de aula, referentes ao ensino de Sistemática e de Taxonomia, a partir da perspectiva de professores efetivos da rede estadual de ensino do município de São Carlos, interior do estado de São Paulo. No que se diz respeito aos capítulos teóricos deste estudo, buscou-se tecer algumas considerações acerca do histórico da Sistemática e Taxonomia Biológica como áreas que trazem conteúdos e temas que são considerados como saberes clássicos. Além disso, uma discussão sobre alguns aspectos relevantes do ensino de Biologia e do ensino de Sistemática e Taxonomia durante os anos que compreendem o Ensino Médio também foram executadas, bem como um breve levantamento sobre as pesquisas que estão ocorrendo em relação ao ensino das áreas estudadas nesta dissertação. Para tanto, esta pesquisa de caráter qualitativo, contou com a participação de quinze professores efetivos da disciplina de Biologia, que primeiramente responderam a um questionário que contemplou questões específicas que versavam sobre três temáticos: conceitos específicos, metodologia de trabalho em sala de aula e formação docente. Em um segundo momento, a fim de aprofundar as respostas obtidas no primeiro instrumento de pesquisa, cinco docentes participantes foram submetidos a um roteiro de entrevista semiestruturada, que contou com quatro grandes momentos: conteúdos, currículo, metodologia e perspectivas futuras. As análises dos dados foram realizadas de acordo com a categorização das respostas dos participantes por meio da análise de conteúdo. Os resultados e discussões dos dados obtidos por meio dos dois instrumentos de coleta foram apresentados mediante quatro grandes eixos, sendo que houve a interlocução das respostas obtidas no questionário e na entrevista. / This thesis aims to investigate how the biology teachers understand, organize and teach Systematic and Biological taxonomy in biology courses of the state in São Carlos - SP. The starting point was the hypothesis that the Biology contents are worked memoristic and piecemeal and that the teaching of content brought by Systematics and Taxonomy during the years of high school can be guiding and necessary for there to contextualization and understanding of other areas that includes biology, including Zoology, Botany, Evolution and all the biological knowledge. Thus, the objective of this research is to see how is the organization, understanding and work in the classroom for the teaching of Systematics and Taxonomy, from the perspective of effective teachers teaching of the state of the city of San Carlos, upstate São Paulo. As regards the theoretical chapters of this study, we attempted to make a few remarks about the history of Systematic and Biological Taxonomy as areas that bring content and themes that are regarded as classics knowledge. In addition, a discussion of some relevant aspects of teaching Biology and Systematics of education and Taxonomy for years to understand the high school were also performed, as well as a brief survey of the research taking place in relation to the teaching of the areas studied this dissertation. To this end, this qualitative research, with the participation of fifteen effective teachers of Biology, who first answered a questionnaire that included specific questions that focused on three thematic: specific concepts, methodology of work in the classroom and training teacher. In a second step, in order to deepen the responses obtained in the first survey instrument, five participating teachers underwent a semi-structured interview guide, which featured four major phases: content, curriculum, methodology and future prospects. Data analyzes were performed according to the categorization of responses from participants through content analysis. The results and discussion of the data obtained by means of the two data collection instruments were presented by four major axes, and there was a dialogue of the responses from the questionnaire and interview.
72

Designing and Assessing New Educational Pedagogies in Biology and Health Promotion

Cook, Kristian Ciarah 02 April 2020 (has links)
Recent developments in educational research raise important questions about the design of learning environments—questions that suggest the value of rethinking what is taught, how it is taught, and how is it assessed. During the past few decades, STEM disciplines began formally recognizing and integrating discipline-based education research (DBER) into their research programs to improve STEM education. One of the less literature-affluent areas of DBER addresses curriculum order and design appertaining to concept types and the order in which we teach those concepts. As educational researchers, we pose the question: does content order matter? In this project we designed, implemented and analyzed a concrete-to-abstract curriculum as a way of teaching and learning that not only builds off what students already know but how their intellect develops throughout the learning process. This semester-long curriculum design is scientifically supported and provides a learning environment aimed to not only building a student’s declarative knowledge of the subject but procedural knowledge as well and a way of developing scientific reasoning skills. This design also aimed at enhancing a student’s ability to make connections between biological concepts despite being classified as different biological concept types (e.g. descriptive, hypothetical, and theoretical concepts) as described by Lawson et al (2000). The reasoning behind and development of this project was based from Jean Piaget’s proposed stages of intellectual development, which supports the concrete-to-abstract theory. We found that, when compared to a traditional biology course (abstract-to-concrete in terms of content order), a concrete-to-abstract order of content resulted in significantly higher biological declarative knowledge and ability to make concept connections. While we failed to detect a significant difference between the two courses in terms of how quickly scientific reasoning skills are developed or how students’ scores on scientific reasoning skill assessments, the concrete-to-abstract course did show significantly higher gains in reasoning between the start and end of the semester. In addition to this project, a significant amount of time was also allocated to the design and evaluation of a health promotion and education program in Samoa. We developed a program which centered on a principal-run caregiver meeting as a means to expand health promotion and prevention efforts concerning Rheumatic Heart Disease, which is a significant cause of child morbidity and mortality in Samoa. We found that training principals on how to inform their student’s caregivers was an effective way to increase RHD awareness and disseminate correct health information including what to do if their child presents with a sore throat.
73

15. Internationale Frühjahrsschule der Fachsektion Didaktik der Biologie im Verband Biologie, Biowissenschaften und Biomedizin in Deutschland: 18. - 21. März 2013 - Leipzig

Jurgowiak, Martin, Zabel, Jörg January 2013 (has links)
Die Frühjahrsschule der FDdB (Fachsektion Didaktik der Biologie im VBIO) ist eine jährlich stattfindende Tagung für Nachwuchswissenschaftlerinnen und Nachwuchswissenschaftler in der Biologiedidaktik. Sie wurde 1998 von Helmut Vogt, zu Lebzeiten Professor für Didaktik der Biologie an der Universität Kassel, begründet. Seit fast 15 Jahren bietet sie nun Jungwissenschaftlerinnen und Jungwissenschaftlern der Biologiedidaktik die Möglichkeit, ihre Forschungsvorhaben unter ihresgleichen zu präsentieren und zu diskutieren.
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WHERE’S THE MECHANISM? EXPLORING FEATURES OF UNDERGRADUATE BIOLOGY STUDENTS’ SYSTEMS THINKING IN VARIOUS CONTEXTS

Sharleen Flowers (12476307) 28 April 2022 (has links)
<p>In recent years, science has shifted from a focus on reductionist explanations of biological phenomena to a more integrated, systems approach. This shift has made its way into curricular recommendations for undergraduate education. To understand complex biological phenomena, it has been argued that students employ mechanistic reasoning, in which one describes a mechanism by identifying the activities that produce change, the entities which engage in activities, and the starting and ending conditions. Students’ use of mechanistic reasoning requires engaging in the complex task of simultaneously integrating and coordinating multiple elements across space and time. In addition, students must link and organize their scientific ideas and then structure their thoughts into a network of knowledge, as described by the theory of knowledge integration. Previous studies that have explored students’ understanding of scientific concepts using knowledge integration as a lens found that students’ nonmechanistic ideas prevented them from identifying gaps in the connections between their ideas and from forming normative knowledge. Thus, this dissertation investigates the features of undergraduate biology students’ systems thinking using knowledge integration and mechanistic reasoning as conceptual and analytical frameworks. Using a semi-structured interview, we asked students to describe functional definitions of and relationships between three fundamental modules in biology (i.e., gene regulation, cell-cell communication, and the relationship between genotype and phenotype). In the first study, we found that the majority of students did not have normative functional definitions for how and why gene regulation occurs or how phenotype is regulated. When describing the relationships in an open context, most students expressed unidirectional, linear knowledge networks which lacked Mechanistic connections. In our second study, we examined how students described a transition point in biofilm development after being cued to think about the three modules. Though students struggled to transfer over relevant ideas to the biofilm context (such as gene regulation and cell-cell communication processes), we found that explanations were more specified in the nature of connections and content including more Mechanistic descriptions. In the third study, we explored features of biology students’ and instructors’ knowledge networks in an open context and situated to a context of the participants’ choice. Within an open context, most students described multidirectional, non-linear knowledge networks similar to instructors. In the specific context, the majority of students described non-linear knowledge networks, but some students modified their structures to be linear. Although the structures became less complex in the specific context, the nature of connections and content became more specified. Across all studies, we found that context greatly affected students’ systems thinking as revealed by the changing features of the knowledge networks. Specifically, context helped students identify what relationships they deeply understood and could transfer and allowed for the creation of a detailed explanation relevant to the specific biological phenomenon. For students to develop a broad systems perspective of biology, we recommend instructors engage students in the process of knowledge integration. Embed opportunities for students to think about biology concepts in various contexts, particularly where students grapple with nuanced and complex transfer of ideas. These practices will encourage students to form causal, mechanistic linkages between concepts and build an integrated, expert-like understanding of biology.</p>
75

Organisationsnivåer i kolets kretslopp : En beskrivning av biologiska organisationsnivåer utifrån gymnasieelevers uppfattning och användning av dem / Levels of organisation in the carbon cycle : A description of biological levels of organisation based on upper secondary school students’ perception and use

Julsgård, Sara, Kilborn, Josefine January 2023 (has links)
Allt mer naturvetenskapsdidaktisk forskning intresserar sig för systemtänkande och elevers utvecklande av förmågor som att förstå, förklara och tolka komplexa och dynamiska system. I detta ingår identifikation av fenomen på olika biologiska organisationsnivåer och relationerna dem emellan. Kolets kretslopp är exempel på ett komplext system som innefattar komponenter och processer på flera olika mikro- och makronivåer. Denna studie undersöker elevers uppfattning och användning av olika biologiska organisationsnivåer vid förklaring av kolets kretslopp med hjälp av en interaktiv visualisering. För datainsamlingen användes think aloud-intervjuer med gymnasieelever som, indelade i par, genomförde en övning i visualiseringen och med hjälp av den förklarade kolets kretslopp. I analysen kategoriserades elevernas uttalanden till olika organisationsnivåer (molekyl, cell, organism, ekosystem och global) och beskrivningar av nivåerna upprättades utifrån kodning. Resultatet visar att eleverna framförallt förklarar kolets kretslopp på organism- och ekosystemnivå, men också att samtliga fem utvalda organisationsnivåer behandlas. Dessutom består resultatet av beskrivningar av, och exempel på, organisationsnivåerna utifrån elevers användande av dem, vilka kan fungera som stöd för biologilärare i utveckling av elevers systemtänkande. / An increasing amount of science education research concerns systems thinking and the development of students’ ability to understand, explain and interpret complex and dynamic systems. This includes the identification of phenomena on different biological levels of organisation, as well as their interrelationships. The carbon cycle constitutes a complex system including components and processes on several micro- and macrolevels. This study investigates students’ perception and use of different biological levels of organisation in explaining the carbon cycle through an interactive visualisation. Data collection was carried out through think aloud-interviews with Swedish upper secondary school students divided into pairs. The students performed an exercise in the visualisation and used it for explaining the carbon cycle. In the analysis students’ expressions were categorised according to five selected levels of organisation (molecule, cell, organism, ecosystem and global). Coding of the expressions was performed to characterise each level of organisation. The result shows that the students primarily explained the carbon cycle through the organismal and ecosystem levels, but that all five of the selected levels of organisation were used. Additionally, the results contain descriptions and examples of the levels of organisation based on students’ use. This can serve to support biology teachers in developing students’ systems thinking.
76

Hona eller hane? En inblick i olika könsbestämningssystem hos vertebrater : Samt hur det kan tillämpas i biologiundervisningen på gymnasiet / Female or male? An insight into different sex determination systems in vertebrates : And how it can be applied in biology education in high school

Kristensson, Erica, Youssif, Makarios January 2023 (has links)
Könsbestämning hos vertebrater är ett komplext område som har intresserat forskare under en lång tid, trots detta är det i dagens forskningsläge inte helt självklart vad det är som avgör kön. Syftet med denna litteraturstudie är att identifiera och sammanställa kunskap om avgörande könsbestämningsmekanismer utifrån det aktuella forskningsläget. I samband med detta kommer arbetet undersöka hur exempel från könsbestämningssystem hos vertebrater kan användas och tillämpas i biologiundervisning på gymnasiet. Arbetet kom fram till att det är flera gener och proteiner som deltar i könsbestämningen, samt att många av dessa konserverats genom evolutionen. Dock betyder inte detta att alla grupper har samma könsbestämningsmekanismer utan det fanns en stor variation mellan vertebratgrupper. Jämförelser av könsbestämningssystemen visade på nya evolutionära samband mellan genetisk och miljöbetingad könsbestämning. Avslutningsvis konstateras möjliga tillämpningar i biologiundervisningen på gymnasiet. Exempel från olika könsbestämningssystem hos vertebrater kan eventuellt användas för att ge elever nya naturvetenskapliga perspektiv på könsbestämning och utveckla biologilärarens arbete med sexualitet, samtycke och relationer. / Sex-determination in vertebrates is a complex area of research that has interested researchers for a long time, still to this day it is not entirely clear what determines sex. The purpose of this literature review is to identify and summarize knowledge about crucial sex-determining mechanisms based on the current state of research. Regarding this review it will investigate how examples from the sex determination system in vertebrates can be used and applied in biology education at high school. The work concludes that there are several genes and proteins that are a part of the sex-determination, and that many of these have been conserved during evolution. However, this does not mean that all the vertebrates have the same sex-determining systems; rather there is a large variance within the vertebrates. Comparison of the sex-determining systems revealed new evolutionary relationships between the genetical- and the environmental sex-determining system. Finally, possible applications in biology education in high school were discussed. Examples from different sex-determining systems in vertebrates could potentially be used to provide students a new scientific perspective of sex-determination and develop the teacher’s work with sexuality, consent and relationships.
77

O papel das interações polêmicas (controvérsias científicas) na construção do conhecimento biológico: investigando um curso de formação continuada de professores sobre evolução humana / The role of polemic interactions (scientific controversies) in the construction of biological knowledge: investigating a continuedformation course teachers about human evolution

Bulla, Marcelo Erdmann 11 February 2016 (has links)
Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-02-19T14:24:52Z No. of bitstreams: 2 Marcelo_Bulla2016.pdf: 3993194 bytes, checksum: 9b25d2bdf8051313c71add0d89fff2ab (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-02-19T14:24:52Z (GMT). No. of bitstreams: 2 Marcelo_Bulla2016.pdf: 3993194 bytes, checksum: 9b25d2bdf8051313c71add0d89fff2ab (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-02-11 / The research presented here is focused on the Human Biological Evolution, its Polemic Interactions (scientific controversies) and Continued Formation of teachers. We aim to highlight the role of polemic interactions in the construction of biological knowledge by polemic among paleoanthropologists Tim White and Esteban Sarmiento on the hominid fossil Ardipithecus ramidus ("Ardi"). We also propose to evaluate the development of a teaching sequence about the subject, in a continued formation course for teachers of science and biology of basic public network Cascavel-PR and region. We justify the choice of the theme "human biological evolution" because it is a area little or anything addressed during the initial formation (graduation) and in the absence of continued formation courses. The decision in research on polemic interactions ocurred due to the fact that these are the natural dialogical context of science in which are elaborated theories. The choice of White-Sarmiento polemic interaction is justified due this scientific controversy proposes a revision of two hypotheses relatively well accepted by the scientific community: "savannah hypothesis" and the "hypothesis chimpanzee-like common ancestor". In addition, we have already used simplified way this polemic in high school resulting in fruitful discussions about science. Such polemic interaction was analyzed according to the criteria established by the philosopher Marcelo Dascal (1994; 2005; 2006) and classified as the dominant type discussion. The empirical work involved collecting data from the answers provided by teachers to an initial questionnaire and a final. In addition to the questionnaires, we collect data from filming during the formation course. The data made were evaluated by Content Analysis methodology. The analysis and discussion of data obtained from empirical research with teachers has highlighted the urgency and relevance in proposing at least one elective course that addresses human biological evolution in the initial formation. However, we hope that such content should be included in compulsory subject. Sets up also of utmost urgency offering continued formation courses in the area for teachers already inserted at schools. We also evidenced the importance of polemic interactions for the development and advancement of scientific knowledge. We conclude that teaching biology and science using polemic interactions (scientific controversies) may be in satisfactory teaching tool to present the history of science and it nature, since scientific activity is permeated by conflicts and intellectual battles. Present this scientific image can improve the understanding of students in relation to the internal operating mode of science within the scientific communities, highlighting its competitive and collective character. Some teachers realized the presence of non-scientific values in White-Sarmiento scientific controversies. This is important to remind us not to introduce to students the scientist's image as someone alien to society and culture / A pesquisa aqui apresentada tem como tema central a Evolução Biológica Humana, suas Interações Polêmicas (controvérsias científicas) e a Formação Continuada de professores. Temos como objetivos evidenciar o papel das interações polêmicas na construção do conhecimento biológico através da polêmica entre os paleoantropólogos Tim White e Esteban Sarmiento relativa ao fóssil hominídeo Ardipithecus ramidus (“Ardi”). Propomos, também, avaliar o desenvolvimento de uma sequência didática sobre o tema, em um curso de formação continuada para professores de Ciências e Biologia da rede básica pública de Cascavel-PR e região. Justificamos a escolha do tema “evolução biológica humana” por se tratar de uma área pouco ou nada abordada durante a formação inicial (graduação) e devido à ausência de cursos de formação continuada. A decisão em pesquisar sobre as interações polêmicas se deve ao fato de que essas constituem o contexto dialógico natural da ciência no qual se elaboram as teorias. A escolha da interação polêmica White-Sarmiento se justifica devido a essa controvérsia científica propor a revisão de duas hipóteses relativamente bem aceitas pela comunidade científica, a “hipótese da savana” e a “hipótese do ancestral comum chimpanzé-semelhante”. Além disso, já havíamos utilizado simplificadamente essa polêmica no ensino médio resultando em férteis discussões acerca da ciência. Tal polêmica fora analisada de acordo com os critérios estabelecidos pelo filósofo Marcelo Dascal (1994; 2005; 2006) e classificada como sendo do tipo dominante discussão. O trabalho empírico envolveu a coleta de dados a partir das respostas fornecidas pelos professores a um questionário inicial e a um final. Além dos questionários, coletamos dados a partir de filmagens durante o curso de formação. Os dados constituídos foram avaliados mediante a metodologia de Análise de Conteúdo. As análises e discussões dos dados obtidos na pesquisa empírica com os professores permitiu evidenciar a urgência e relevância em se propor, ao menos, uma disciplina optativa que aborde a evolução biológica humana na formação inicial. No entanto, aspiramos que tal conteúdo, deveria constar em disciplina obrigatória. Configura-se também, de máxima urgência, o oferecimento de cursos de formação continuada na área, para os docentes já inseridos nas escolas. Também evidenciamos a importância das interações polêmicas para o desenvolvimento e avanço do conhecimento científico. Concluímos que ensinar biologia e ciências utilizando interações polêmicas (controvérsias científicas) pode constituir-se em satisfatória ferramenta pedagógica para apresentar a história da ciência e a sua natureza, uma vez que a atividade científica é permeada por conflitos e batalhas intelectuais. Apresentar essa imagem científica pode melhorar a compreensão dos estudantes em relação ao modo de trabalho interno da ciência, dentro das comunidades científicas, destacando seu caráter competitivo e coletivo. Alguns professores perceberam a presença de valores não-científicos na controvérsia científica White-Sarmiento e isso torna-se relevante para nos lembrar de não apresentar aos alunos a imagem do cientista como alguém alheio à sociedade e à cultura.
78

Data-based scientific reasoning: Uncovering perceptual and interpretational processes involved in responses to anomalous data in science education

Meister, Sabine 23 January 2024 (has links)
In der Dissertation wird der Frage nachgegangen, welche kognitiven Prozesse der Informationsverarbeitung von wissenschaftlichen Daten beim konzeptuellen Lernen von biologischen Inhalten eine Rolle spielen. Dafür wird ein theoriebasiertes Modell des data-based scientific reasoning beschrieben, welches ebenfalls Aspekte der visuellen Wahrnehmung einbezieht. Dabei kann eine Synthese sogenannter bottom-up- und top-down-Effekte die visuelle Wahrnehmung der dargestellten Daten beeinflussen. Von Interesse sind hierbei Charakteristika der Repräsentation der Daten, sowie die individuellen Vorstellungen zum Kontext und ob, die Daten diese stützen oder widerlegen (anomale Daten). Weiterhin wird in der Arbeit die Rolle von data-based scientific reasoning auf wissenschaftliche Modellierungsprozesse untersucht, da Modellieren als übergreifende wissenschaftliche Praxis gesehen werden kann. In vier empirischen Studien wurden kognitive Prozesse beim Umgang mit Daten bei angehenden Biologielehrkräften, mit Fragebögen, Eye Tracking und lautem Denken untersucht. Die Ergebnisse der durchgeführten Studien heben die Rolle der visuellen Wahrnehmung als entscheidenden Schritt beim data-based scientific reasoning hervor. In Bezug auf Charakteristika der Repräsentation erscheint es notwendig, die visuelle Aufmerksamkeit der Lernenden auf spezifische Merkmale zu lenken und mit entsprechendem konzeptuellem Wissen zu verknüpfen. Die Ergebnisse legen nahe, dass anomale Daten zwar mit wissenschaftlich adäquatem Wissen erklärt werden, dies aber nicht automatisch zur Änderung ursprünglicher Vorstellungen bezüglich des Kontexts führt. Diese Tendenz scheint mit Unsicherheit gegenüber den Daten verbunden zu sein. Darüber hinaus spielen anomale Daten eine zentrale Rolle in wissenschaftlichen Modellierungsprozessen. Die Ergebnisse der entsprechenden Studie deuten darauf hin, dass hoch ausgeprägte Kompetenzen des data-based scientific reasoning mit elaborierten Modellierungsprozessen zusammenhängen. / The thesis focusses on the relevance of reasoning with scientific data for conceptual learning in biology. It aims to contribute to the question which cognitive processes are involved when learners encounter data sets that support or contradict their individual expectations. Therefore, a theoretical model of data-based scientific reasoning is described that is grounded on a general model of information processing. In this model, aspects of visual perception are emphasized. However, visual perception is influenced by a synthesis of so-called bottom-up and top-down effects. Furthermore, the theoretical perspective on the role of responses to anomalous data for scientific practices was extended by investigating how learners react and integrate anomalous data during modeling processes. In four empirical studies cognitive processes leading to responses to anomalous data in science education were investigated by applying a mixture of questionnaires, eye tracking techniques, and think aloud. The findings of the conducted studies highlight the role of perceptual processes as a key step during data-based scientific reasoning. Regarding representational characteristics it seems necessary to guide learners´ visual attention and connect specific features with corresponding conceptual knowledge. However, the findings suggest that a use of adequate scientific knowledge for explaining anomalous data does not lead to a change in initial conceptions regarding the context, since participants of the studies still tended to maintain their initial expectations. This tendency seems to be linked to a high need for encompassing information and a connected uncertainty towards the perceived data. Furthermore, anomalous data play a central role during modelling processes. The results of the corresponding study, indicate that sophisticated competencies of data-based reasoning with anomalous data relate to elaborate modeling processes.
79

It is an Experience, Not a Lesson: The Nature of High School Students' Experiences at a Biological Field Station

Behrendt, Marc E. 09 June 2014 (has links)
No description available.
80

Ökologie, Ökonomie und Soziales im Biologieunterricht / Konzepte von Lehrkräften

Hellwig, Hauke 14 October 2009 (has links)
Der Umweltunterricht in Biologie befindet sich in der Orientierung zwischen Zwängen zur Reduktion auf naturwissenschaftliches Basiswissen (scientific literacy), den Kompetenzansprüchen der traditionellen Umweltbildung (environmental literacy) und der zuletzt implementierten Bildung für Nachhaltigkeit (BNE) mit dem Ziel Gestaltungskompetenz (sustainability literacy). Die hier präsentierte Studie diente neben der Bestimmung und Diskussion des Ist-Standes bei der Vermittlung umweltbezogener Gesichtspunkte im Rahmen des Faches Biologie auch der Entwicklung eines entsprechenden Instrumentes zur Erfassung der Unterrichtskonzepte von Lehrpersonen. Die Identifikation der Unterrichtskonzepte ging von Lehrkräften und deren Befragung in einem Ländervergleich zwischen Deutschland und Schweden aus. Methodisch wurde eine Kombination aus qualitativen und quantitativen Verfahren umgesetzt. Drei latente Erklärungsvariablen für die Antwortmuster der Lehrpersonen wurden faktorenanalytisch identifiziert und in verschiedenen Erhebungswellen validiert. Darauf basierend wurden drei kurze Testskalen gebildet. Ein zweites Auswertungsverfahren bestand in der Clusteranalyse der befragten Lehrkräfte. Indem die Cluster mit den Skalen in Beziehung gesetzt wurden, konnten anhand der Varianz der Gruppenmittelwerte verschiedene Profile identifiziert werden. Dies führte zur Beschreibung von je sechs qualitativ und quantitativ differenzierbaren Unterrichtskonzepten in Deutschland und Schweden als reservierte, minimalistische, traditionelle, neuorientierte, ambivalente und pluralistische Realisierung von Umweltbiologie. Während der reservierte Ansatz in Schweden nicht auftritt, kann dort „theoretische Umweltbiologie“ unterschieden werden. Beim derzeitigen Aus- und Fortbildungsstand der Lehrkräfte ist die Umsetzung von BNE in Deutschland nicht adäquat gewährleistet. Gründe dafür liegen im disziplinären Vermittlungsmodus, mit dem die Entwicklung überfachlicher Kompetenzen kaum vereinbar ist. / Environmental education has been implemented interdisciplinary at school in Germany. On the contrary, teacher training still remains emphasizing specific scientific subjects. Only recently, different initiatives towards education for sustainable development (ESD) are under way on state level, sub-state level and local level. However, common criteria for designing interdisciplinary teaching processes have not become obvious in Germany. There is a risk, therefore, that teachers will make decisions concerning aims, content and methods based solely on intuition. The study presented here identifies and discusses the existing state of concepts of environmental biology among biology teachers with respect to scientific literacy, environmental literacy and sustainability literacy. A wide range of different aspects of didactics in environmental biology was identified and gathered from biology teachers and scientists in Germany and Sweden. Following classical test theory, the diverse statements were eventually transformed into a closed Likert-scale questionnaire. In two preliminary studies and in the main study that was conducted across the whole of Germany, three dimensions were identified and validated by means of factor analysis. Using cluster analysis, six concepts can be distinguished: pluralistic, ambivalent, realigned, traditional, minimalist and reserved realisation of environmental biology. Biology teachers generally refer to a disciplinary science orientated teaching repertoire when addressing environmental education, which is not adequate to ESD theory. Following the investigation in Sweden, also six concepts can be distinguished. Instead of the reserved concept, a theoretic realisation exists in Sweden suitable for facilitation of sustainability literacy. In five types of realising environmental biology, a high degree of agreement was identified between perceptions of teachers in Germany and Sweden.

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