Who will teach the 'nature of science' ? : teachers' views of science and their implications for science education

Quelles sont les conceptions et les croyances des professeurs de science concernant l'épistémologie des sciences ? Quels sont leurs besoins et leurs motivations au moment d'aborder cet aspect du programme de science en classe ? Leurs croyances et leurs motivations exerceront-elles une influence importante sur la façon de présenter la science aux élèves ? Telles sont les principales questions abordées dans cet article. Celui-ci résume les résultats d'une recherche qui a examiné les conceptions d'un certain nombre de professeurs de science selon une méthode dérivée de la théorie du construct personnel de Kelly. Les conséquences pour l'enseignement des sciences sont examinées et des orientations pour la formation professionnelle dans ce domaine sont proposées

The Kalanchoe genome provides insights into convergent evolution and building blocks of crassulacean acid metabolism

Crassulacean acid metabolism (CAM) is a water-use efficient adaptation of photosynthesis that has evolved independently many times in diverse lineages of flowering plants. We hypothesize that convergent evolution of protein sequence and temporal gene expression underpins the independent emergences of CAM from C3 photosynthesis. To test this hypothesis, we generate a de novo genome assembly and genome-wide transcript expression data for Kalanchoë fedtschenkoi, an obligate CAM species within the core eudicots with a relatively small genome (~260 Mb). Our comparative analyses identify signatures of convergence in protein sequence and re-scheduling of diel transcript expression of genes involved in nocturnal CO2 fixation, stomatal movement, heat tolerance, circadian clock, and carbohydrate metabolism in K. fedtschenkoi and other CAM species in comparison with non-CAM species. These findings provide new insights into molecular convergence and building blocks of CAM and will facilitate CAM-into-C3 photosynthesis engineering to enhance water-use efficiency in crops

Educational research : contemporary issues and practical approaches

About the BookWhat is educational research? What are its current approaches, methods and methodologies? How should existing literature be reviewed and evaluated critically? What are the key philosophical debates in and on educational research? How should research in education be conducted and how should it be presented? And what is the value of such research?With this extensively revised edition of a much-admired and engaging guide, Jerry Wellington provides clear and constructive answers to these questions, complete with detailed advice on methods such as interviewing, surveys, documentary research and the use of focus groups. Thoroughly overhauled and updated, this edition includes new case studies, helpful 'theory summary' boxes, and a range of activities or 'points to ponder' to foster engagement with current issues. Retaining the clarity and concision of the previous edition, and its approachable and practical style, Jerry Wellington provides an invaluable text for all those engaged in educational research.Table Of Contents :AcknowledgementsNotes on Contributors of Case StudiesIntroduction: Using This BookPart I: Issues and Approaches1. An Overview to Educational Research2. Varying Approaches to Researching Education3. Reviewing the Research Literature4. Being Critical and Reflexive: Principles and Practice5. The Researcher's Role and ResponsibilityPart II: Methods and Their Limits6. Interviewing7. Case Study8. Survey Research9. Documentary Research and Analysis10. Other Methods for the ResearcherPart III: Analysing, Presenting and Disseminating11. Dealing with Qualitative Data12. Writing and Publishing13. What's the Use of Educational Research?AppendicesGlossary of TermsReferences and Further ReadingIndexFor more information:https://goo.gl/DHkerCxiii, 368 p. ; 24 c

Taking Control of Writing Your Thesis: a Guide to Get You to the End

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Science learning, science teaching

Esta publicación ofrece a los maestros una guía completa y crítica en la enseñanza y el aprendizaje de la ciencia. Combina una visión general de la investigación actual con los cambios del plan de estudios para proporcionar una guía práctica de la enseñanza en el aula. Da consejos útiles e ideas para explorar más sobre los problemas actuales en la enseñanza de la ciencia. Incluye planificación de la enseñanza, establece objetivos de evaluación, el uso de las TIC. Cada capítulo ofrece referencias, bibliografía y sitios Web.SCBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]