Search for dissertations about: "variation theory"

Showing result 1 - 5 of 412 swedish dissertations containing the words variation theory.

2. 1. Teaching for the learning of additive part-whole relations : The power of variation and connections

   Author : Anna-Lena Ekdahl; Ulla Runesson Kempe; Hamsa Venkat; Camilla Björklund; Christiane Benz; Jönköping University; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; variation; variation theory; connections in teaching; making connections; early numbers; teaching and learning additive relations; part-whole relation; part-whole relations of numbers; intervention study;

   Abstract : In this thesis, results from four empirical studies and a re-analysis are synthesized with what can constitute a structural approach to teaching and learning additive part-whole relations among learners aged four to eight years. In line with a structural approach to additive relations, the relations of parts and whole are in focus from the outset and are seen as the basis for addition and subtraction (Davydov 1982; Neuman, 1987). READ MORE

4. 2. How to Reduce Geometrical Variation in Assembled Products

   Author : Johan Carlson; Göteborgs universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; assembled products; body-in-white BIW ; dimensional variation; geometrical variation; fixtures; fixture diagnosis; locating schemes; multivariate analysis; rigid body motion; robust design; root cause; quality; root cause;

   Abstract : Vehicle problems, such as wind noise, water leakage and door closing effort are examples of quality and functionality defects that are controlled by the dimensional accuracy of the structural frame of an auto body. The aim of this thesis is towards methods for reducing geometrical variation in assembled products in the automotiv other industries. READ MORE

5. 3. Genetic variation in structured populations

   Author : Marina Rafajlovic; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; genetic variation; varying population size; effective population size; mutation; recombination; migration; multiple paternity; geographic structure; tests of neutrality; gene tree; species tree;

   Abstract : It is widely acknowledged that the process of speciation in the presence of gene flow between different ecotypes is common in nature. However, the mechanisms underlying speciation are not understood. READ MORE

6. 4. Rate as the relation of changes in two quantities : A variation theory perspective of learning rate of change

   Author : Per Håkansson; Robert Gunnarsson; Ulla Runesson Kempe; Jönköping University; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rate of change; slope; covariation; functions; mathematics teaching and learning; variation theory; learning study; förändringstakt; lutning; samvariation; funktioner; matematiklärande; variationsteori; learning study;

   Abstract : This thesis comprises three original papers about learning rate of change in school mathematics. The overall aim of the thesis is to contribute with knowledge in this particular area of research. Within this aim, each of the original papers contribute with its own perspective. READ MORE

7. 5. On the analytical engagement of social semiotics and variation theory in physics education research

   Author : Moa Eriksson; Nationellt Resurscentrum för Fysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Social semiotics; Variation theory; Relevance structure; Dimensions of variation; Semiotic resources; Fysicumarkivet A:2020:Eriksson;

   Abstract : In this licentiate thesis, I explore how two theoretical frameworks—social semiotics and the variation theory of learning—used in physics education research, can be fruitfully combined to obtain additional analytical tools for analysing student learning in introductory level university physics. Each theoretical framework has on their own, or together with other frameworks, been successfully applied for analysing both individual and collective learning, but the combination of the two has yet not been fully explored. READ MORE