In my study I have chosen to examine the mathematics in children's free play and everyday situations, with focus on sorting and classification. The purpose of the study was to see how children express their mathematical knowledge. I have chosen to use a qualitative method in my examination, here I did observations in a children's group where the children were between three and six years old. I also did interviews with the teacher's on the department to see how they relate to the mathematics and how they formulate the department to achieve as good a learning environment as possible.The result shows that the teacher's approach is incredible important to the children's learning ability and that they are always present to challenge and discuss together with the children. The observation indicates that children use mathematics all the time in their everyday situations and that it is the interaction between individuals and environment that affects children's development. .

This project is implemented as a thesis at the Royal Institute of Technology in the master?s degree program Integrated Product Design and Industrial Design Engineering. The project has involved development and efficiency of a free starter package for expectant parents with useful content consisting of useful products for both before and after childbirth. Areas that have been investigated include packaging development, service design and appropriate content for the package.During the work, theory about packaging design, materials, manufacturing techniques and logistics have been processed to base the further work on. The project process has involved competitor analysis and interviews with store owners and customer surveys, that have been conducted to identify areas for improvement of the current solution.

In this essay I analyse three of my own texts included in an unpublished collection entitled till Narcissus' minne. Genres are discussed and a detailed study of how the writing process has progressed is done. The essay does not follow any specific literary or scholarly method of analysis, but to some extent the sphere of interpretation is explored. By associative interpretation the special logic of dreaming, the activity of the unconsciousness and the expansive accessibility of the memories, which characterize the texts, is traced. These structural features open a link to the way of psychoanalytical interpretation, but the essay does not strive for a complete account.

The purpose of this thesis was to find out how travel agencies work with relationships to their customers on the Internet. A case study with two companies was conducted, Ticket and Resia. In all four interviews were done, two in every company that served as basis for our conclusions. The study showed that it is important for travel agencies and other types of companies to create awareness of their web site in as many ways as possible and make it easy for the customer to find the web site. The contents on the web site have to be of current interest, it should be well structured and the usage of the web site should be easy.

The Blötberget deposit is situated in the north-western part of Bergslagen. The mineralization is an apatite-iron oxide ore of Kiruna type. In Bergslagen the apatite-iron oxide ores occur along a zone from Grängesberg through Blötberget to Idkerberget in the northeast and they represent the largest and the most important iron oxide deposit in Sweden, south of Norrbotten.Different REE hosting phosphate phases has been studied by optical microscopy and analyzed by EDS attached to an electron microscope.The key minerals other than iron oxides are apatite, monazite and xenotime. The relative concentration of the REE-bearing phases differs from the other apatite-iron oxide mineralizations in the area, for example Grängesberg, by a higher concentration of xenotime and lower contents of allanite..

This master thesis is the documented work of the construction process and testing of a three hour laboratory session in mathematics aimed at high school level students. The purpose of the thesis was to create an interesting laboratory session for the science education center ?The House of Science? that could be used as a part of their regular program directed to schools. The thesis explores the possibilities for how one can construct a laboratory session on the topic ?molecular symmetry? as well as the underlying pedagogical theories used to describe learning processes in creative contexts.

The purpose of this study is to investigate the children?s mathematics learning through play. The questions to be answered are: how can teachers facilitate children?s mathematics learning through play? How can play affect children?s math learning? Are the children aware of the role of play in their mathematics learning?My method is based on interviews and observations. My informants are three teachers who work in two different preschools.

Syftet med denna empiriska studie är att undersöka hur lärare kan erbjuda möjligheter för 6-åringar att vidga sin förståelse av likhetstecknets innebörd. Undersökningen är inspirerad av Learning Study metoden vilket är en metod som har sin utgångspunkt i variationsteorin. Barnens initiala förmågor analyseras före planeringen av undervisningen och det ger en uppfattning om barnens kunskaper. Utifrån det planeras lektionerna och de aspekter som är de mest kritiska för barnen lyfts och på så sätt utvecklas deras kunskap. Vår slutsats är att det är viktigt att arbeta utifrån ett variationsinriktat lärandeperspektiv.

AbstraktStudien behandlar begreppskunskap inom området positionssystemet hos elever i matematiksvårigheter. Undersökningen har gjorts i årskurs 4 och omfattar naturliga tal avseende tiobassystemet.Studien består av en kvantitativ undersökning och en kvalitativ del med intervjuer.Resultatet av studien har organiserats i tre områden som har betydelse för individens utveckling av matematiska begrepp. Talområdet 1-10, talsystemets uppbyggnad samt förståelsen av stora tal.Av resultatet framgår att förståelse av ett begrepp kan vara mer ytlig än den ser ut att vara. Brister i grundläggande begreppsförståelse kan leda till att räknesvårigheter uppstår. Svårigheter är bland annat begreppen talsort och platsvärde, särskilt i stora tal.Sökord: begrepp, matematiksvårigheter, positionssystemet, schema, specialundervisning, tiobassystemet..

This thesis compares different methods for risk assessment of a creosote contaminated site in Vansbro, Dalarna. In a complementary study the importance of using representative data for calibration and validation of stationary groundwater models is discussed. The time dependency between surface water levels and groundwater levels on the site in Vansbro is evaluated by step response analysis. The results show that the groundwater levels reflect only long-term variation in the surface water levels. Hence the use of such long-term means for calibration and validation of the stationary groundwater models is the only theoretically defendable alternative.As a first step in the comparison of risk assessment methods the degree of contamination is evaluated on the basis of generic guideline values for contaminated soils, developed by the Swedish Environmental Protection Agency.

Discharge of untreated wastewater leads to unnaturally high levels of nitrogen and phosphorus in rivers, lakes and the sea, which results in unbalanced ecosystems with eutrophication and lack of oxygen. Part of the phosphorus in surface waters is coming from on-site wastewater treatment from scattered households with unsatisfactory purification. Blast furnace slag is a by-product from iron production, and has in laboratory trials showed good phosphorus binding capacity. To test blast furnace slag as a reactive filter media for phosphorus separation in a full scale experiment, a wastewater treatment plant has been built behind the picnic area at Ångersjön alongside the road E4 in central-eastern Sweden. The plant contains two parallel lines, one with blast furnaces slag and the other with Filtralite-P as phosphorus sorbent. Both filters have showed decreasing phosphorus purification effect with time in spite of a low wastewater load.

Syftet med denna studie är att undersöka förekomsten av de matematiska kompetenserna i läroböcker för Matematik A. Centralt i studien är de sex matematiska kompetenser, som Palm et al. (2004) analyserat fram ur de nationella styrdokumenten. Dessa kompetenser är: kommunikationskompetens, modelleringskompetens, resonemangskompetens, begreppskompetens, problemlösningskompetens och algoritmkompetens. För att nå syftet genomfördes en analys av uppgifter i två läroböcker för Matematik A.Undersökningens resultat visar att alla sex matematiska kompetenser finns representerade i läroböckernas uppgifter.

This paper is a study of female liminal developments in a selection of Grimm's fairy tales using van Gennep?s and Lincoln?s theoretical bases. An inductive technique has been used to analyze the results according to the theoretical agendas. To my help I have used Swedish translations of the Grimms? fairy tales from 1883, 1946, 2003 and 2007.The study shows that the fairy tales of the Brothers Grimm fairy tales display the transition rituals identified by Van Gennep and Lincoln.

AbstractBy finding out the pupils' choice of strategies for problem solving, we as teachers, can get a better understanding of their way of thinking, and thus also help them develop in their learning of mathematics. In a classroom environment where several different strategies could be found, the pupils' learning is facilitated as they, with the help of classmates, find positive and negative attributes of different kinds of strategies. The pupils are, in other words, each other's resources, rather than competitors. The main point is that the classroom environment, as well as the role of the teacher in the classroom, are both key elements for good mathematics learning.In order to increase the understanding of the pupils' choice of learning strategies, a survey was performed based on two school classes, one third grade and one six grade class at the same school. Both classes received the same mathematical problem to work with, and the strategies observed were analyzed and compared.

Östby waterworks in the community of Kramfors has since 2003 had problems of fast clogging of the slow sand filters. As the clogging appears more often, they must be cleaned more frequently which has made the drinking water preparation difficult. Wintertime it has sometimes been impossible to clean the filters which has led to their closing and this has influenced the water quality negatively.The waterworks is a surface waterworks which takes its raw water from the lake Sjöbysjön. The water is flocculated and filtered in a contact filter with the flocculent EKOFLOCK 91. Thereafter it is alkalinized before it reaches the outdoors placed slow sand filters.