Sökning: "Anna Wistedt"

Hittade 2 avhandlingar innehållade orden Anna Wistedt.

1. 1. Shell formation and bone strength in laying hens : effects of age, daidzein and exogenous estrogen

   Författare :Anna Wistedt; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : In Sweden almost 3.8% of all eggs are ruined due to cracked eggshells as shell quality declines with age during the laying period. This is a concern for food safety as well as an economical problem. Parallel with reduced shell quality the bone strength declines to an extent that the animal's welfare is threatened. LÄS MER

3. 2. Approaching Mathematical Discourse : Two analytical frameworks and their relation to problem solving interactions

   Författare :Andreas Ryve; Kimmo Eriksson; Inger Wistedt; Anna Sfard; Mälardalens högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Didactics of Mathematics; Mathematics Education; Analytical approaches; Communication; Concept maps; Contextualization; Discourse; Engineering students; Higher Education; Intentional analysis; Methodological framworks; Problem solving; Prospective teachers; Student teachers; Teacher education; Theoretical frameworks; MATHEMATICS; MATEMATIK; Matematik tillämpad matematik;

   Sammanfattning : The driving force of conducting the two studies presented in this thesis is to examine ways that conceptual understanding and problem solving could be part of mathematics teaching, and through that, part of students' mathematical knowledge. The specific aims of the thesis are: 1) to characterize the classroom discourse of two, apparently similar, problem solving courses in teacher education and 2) to discuss the possibilities of developing two analytical approaches - the communicational approach to cognition and the dialogical approach - used for studying mathematical discourse. LÄS MER