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Visar resultat 1 - 5 av 869 avhandlingar innehållade ordet Nu.
1. Time is of the essence in speech perception! : Get it fast, or think about it
Sammanfattning : The present thesis examined the extent to which background noise influences the isolation point (IP, the shortest time from the onset of speech stimulus required for correct identification of that speech stimulus) and accuracy in identification of different types of speech stimuli (consonants, words, and final words in high-predictable [HP] and low-predictable [LP] sentences). These speech stimuli were presented in different modalities of presentation (auditory, visual, and audiovisual) to young normal-hearing listeners (Papers 1, 2, and 5). LÄS MER
2. Models of chemical bonding : Representations Used in School Textbooks and by Teachers and their Relation to Students´Difficulties in Understanding
Sammanfattning : This thesis focuses on how school textbooks and teachers present models of chemical bonding in upper secondary schools in Sweden. In science, as well as in science education, models play a central role, but research has shown that they often are difficult for students to understand. LÄS MER
3. Relationships between models used for teaching chemistry and those expressed by students
Sammanfattning : This thesis is focused upon chemistry as a school subject and students' interpretations and use of formally introduced teaching models. To explore students' developing repertoire of chemical models, a longitudinal interview study was undertaken spanning the first year of upper secondary school chemistry. LÄS MER
4. Student 'sustainability consciousness' and decision making on sustainability dilemmas : Investigating effects of implementing education for sustainable development in Swedish upper secondary schools
Sammanfattning : The central role of education for sustainable development (SD) has been emphasized since the 1990s. SD involves the three areas of environment, economy and society, with a focus on the relationships between environmental protection and human development. LÄS MER
5. Teaching and learning of chemical bonding models : Aspects of textbooks, students’ understanding and teachers’ professional knowledge
Sammanfattning : Despite the growing importance of science and technology in society, school students consider these subjects irrelevant and hard to learn. Teachers must therefore know how to teach science in ways that enhance students’ understanding and interest. LÄS MER