Den här studien belyser en del utav matematikundervisningen i skolan, vilken är matematisk problemlösning i grupp. Den utforskar lärares och elevers uppfattningar om vilka förutsättningar som krävs för att lärande i grupp skall ske. Vidare studeras vikten av gruppsammansättningen när det arbetas med matematisk problemlösning i grupp utifrån ett processinriktat och/eller produktinriktat lärande. Genom observationer av elevgrupper samt intervjuer med eleverna och matematiklärarna har materialet sammanställts och analyserats under tre olika teman: förutsättningar för lärandet i en matematisk problemlösningssituation, gruppsammansättningens betydelse för lärandet i en matematisk problemlösningssituation samt process kontra produkt. Dessa teman följer som en röd tråd genom hela arbetet.Resultatet visar vikten av en bra gruppsammansättning gällande problemlösning i matematik.

SAAB Automobile ABis a car manufacturer within General Motors corporate group. SAABAutomobile ABhas a big part of the responsibility for the brake development in the corporategroup. The car industry is facing harder environmental requirements, which influence the brakedevelopment. The focus is to develop brakes with low drag and sustained brake feeling andperformance. Important characters for the brake caliper are high stiffness and low weight, highstiffness results in high performance and low weight is important because it is unsprung mass.This thesis investigates the possibility to improve the performance of the brake caliper for aGMproject.

In July 2010 the curriculum Lpfö 98 was readjusted and was enhanced with new chapter, and the purpose of this essay is to study how preschool teachers discuss and describe how their conduction to the new chapter 2.6 of the readjust Curriculum Lpfö 98. I want to understand how they experience their work with the documentation.My question formulations are:How do three pre-school teachers reason around what they document in the pre-school?Which practical conditions do the pree-school teachers claiming to have on the pre-school to perform the documentation?How do they describe that they use the documentation to advance the tutoring in the preschool?In order to find out more, I interviewed three pre-school teachers, and analyzed the results I got based on prior research on documentation, and quality in preschool. My results show that the main focuses for documentations are how the children interact with each other, how they react and behave with new materials or activities. My informers emphasize that the main purpose of documentation are to be able to show the children their own process of learning.The practical conditions differ among my informers, which can lead to consequences when they want to make documentation and/or use the documentation for its purpose.  My results also indicates that the documentations are used to plan the pedagogical activities in regard to the children?s interests and according to the curriculum Lpfö98 rev.2010.

The aim of this study has been to investigate students? understanding of fractions when they occur in the practical subject home economics. In order to investigate this, the learning study method was used. Learning study can be understood as a method to gain deeper understanding of what is learnt by students during a lesson to increase learning outcome.The variation theory framework has been utilized to analyze the results of this study. The object of learning was chosen to be addition of fractions bigger than one half when they appear in home economics.

Smurfit Kappa Kraftliner i Piteå tillverkar kraftliner med sina två pappersmaskiner. I dagsläget transporteras tamborer, rullar med kraftliner, mellan pappersmaskinerna till rullmaskinerna med traverser. Traversanvändningen i produktion ger slitage med hög underhållskostnad som följd, vilket de vill minska. Detta examensarbete utförs för att erhålla en marknadsundersökning på alternativa transportsystem. I undersökningen jämförs kostnaderna för alternativens system mot kostnaderna för det befintliga systemet.

This thesis compares different justifications of human rights with the philosophy of Axel Hägerström. Hägerström´s philosophy uses a strict logic and discards the notion of the existence of absolute values and moral right and wrong. The justifications that are examined are those of Robert Nozick, Alan Gewirth and the postmodern view. Nozick emanates from arguments of natural law, which is rejected by Hägerström as metaphysics. Gewirths logical justification emanates in part from moral arguments and hence differentiates from Hägerström, but it can be used for constructing a practical application of Hägerström's philosophy and thereby motivate a legislation relating to human rights.

The project is a practical and theoretical test of IP telephony with Skype in order to form a base for a comparison between IP-Telephony with Skype and the Public Switched Telephony Network (PSTN). PSTN is the common standard that most of us use for telephony today. The objective for the study is to simplify the choice between PSTN and IP-Telephony for the Swedish private customer user group. The project is supposed to answer the following questions. - How easy is it to start using IP-telephony with Skype? - How is the quality of IP-telephony compared to PSTN? - Are all services provided by PSTN available and accessible using the IP-solution? - How are the usability and the availability of support with IP telephony? - Is IP-telephony a cheaper solution and in that case under which circumstances? Within the project a collection of practical and theoretical tests have been performed to be able to form an opinion on the IP-solution in the following areas, installation, function, quality, usability, costs, accessibility and security. In order to study usability, a test group of ten persons have been used to evaluate the usability of the system.

The purpose of this Master?s thesis is to investigate how public library users consider the knowledge of the librarians and to examine what the users expect from the librarians. To begin with, we contemplate our own view of the librarians, their knowledge and what help we expect at the library. Realising that we do not expect particularly much from librarians, although we have studied to become librarians for two years, we assume that the regular library user does not expect much either. This assumption resulted in our decision to investigate this particular question.

The aim of this study was to investigate the leaving care services provided to youth leaving residential care in Sweden. Through the use of qualitative research interviews residential care workers perception of what practical and emotional needs youth leaving care have, and whether current aftercare services meet these needs, were examined. The study further sought to compare the swedish and english leaving care services. The main findings of the study were that the residential care workers interviewed expressed that they had a good working relationship with the local social services and that they through the residential care services were able to provide some degree of aftercare. They further identified loneliness as the most prominent emotional need of youth had after leaving care.

Borderlands. A study of the aesthetic-practical environment, its pedagogical and therapeutical properties based on the outline of two practices/institutions: the workshops at Hagastiftelsen and the bookbindery at the Kristofferschool. The perspective on education, pedagogy and therapy taken is an existential one where the main aims of an educational-therapeutic intervention is to support biographical development and integrity. In the process action research in my own bookbinding workshop as well as hermeneutic research at the workshops at Hagastiftelsen where adults with autism and other neuropsychological disorders work have been the sources of primary empirical data. Secondary sources are patient-histories written by Oliver Sacks as well as autobiographical narratives of some adults with autism.

Skolans styrdokument ställer krav på att lärare och elever ska använda digitala medier i undervisningen och digital kompetens ses som en nyckelkomponent för ett livslångt lärande. Syftet är att analysera interaktionen mellan lärare och elever under problemlösningssituationer i matematikundervisningen med smart-board som medierande artefakt. Studien har ett sociokulturellt perspektiv.Empirin är insamlad genom video-observationer och studien är öppen och kvalitativ. Empirin består av fyra filmade och transkriberade sekvenser som innefattar fyra olika elever och hur de arbetar med problemlösning med smart-boarden som medierande artefakt. Empirin är analyserad utifrån EMA-modellen, som bygger på idéer från John Deweys pragmatiska filosofi.Resultatet visar att interaktionen styrs av läraren eftersom att det är läraren som styr över talutrymmet, men även vilka elever som ska vara delaktiga i interaktionen.

There are different types of risk, examples include credit risk, liquidity risk and financial risk. In DeMarzo & Berk (2011, s. 293) is a study presented which is based on the yield of different types of financial assets between 1925 and 2009, the study show that a high risk gave substantially higher reward. With the study as a background, it is interesting to study practical risk management within participants of the financial markets of Sweden. In risk management there are several theories about whether risk can be calculated and analyzed with scientific methods in practice.

The aim of this thesis is to study young people's views on support, knowledge and change. The eight participants in this interview study are between 14 and 19 years old and they share the experience of growing up in a family where a parent is a substance misuser or mentally ill.Childhood sociology has been used as a theoretical framework. The main finding is that emotional and practical support based on the young person's needs and knowledge based on the ideas of empowerment and agency promotes change. The four most important insights according to the young persons are: My parent has got a problem. It is not my problem.

In July 2010 the curriculum Lpfö 98 was readjusted and was enhanced with new chapter, and the purpose of this essay is to study how preschool teachers discuss and describe how their conduction to the new chapter 2.6 of the readjust Curriculum Lpfö 98. I want to understand how they experience their work with the documentation.My question formulations are:How do three pre-school teachers reason around what they document in the pre-school?Which practical conditions do the pree-school teachers claiming to have on the pre-school to perform the documentation?How do they describe that they use the documentation to advance the tutoring in the preschool?In order to find out more, I interviewed three pre-school teachers, and analyzed the results I got based on prior research on documentation, and quality in preschool. My results show that the main focuses for documentations are how the children interact with each other, how they react and behave with new materials or activities. My informers emphasize that the main purpose of documentation are to be able to show the children their own process of learning.The practical conditions differ among my informers, which can lead to consequences when they want to make documentation and/or use the documentation for its purpose.  My results also indicates that the documentations are used to plan the pedagogical activities in regard to the children?s interests and according to the curriculum Lpfö98 rev.2010.

In this paper the rate of convergence, speed of execution and symplectic properties of the time-integrators Leap-Frog (LF2), fourth order Runge-Kutta(RK4) and Crank-Nicholson (CN2) have been studied. This was done by solving the one-dimensional model for a particle in a box (Dirichlet-conditions). The results show that RK4 is the fastest in achieving higher tolerances, while CN2 is the fastest in achieving lower tolerances. Fourth order corrections of LF (LF4)and CN (CN4) were also studied, though these showed no improvements overLF2 and CN2. All methods were shown to exhibit symplectic behavior..