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- Markkanen, Peter, 1964-, et al.
(författare)
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Building a joint problem-solving space: how collaboration in collective mathematical reasoning can develop
- 2024
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This study investigates how collaborative, collective mathematical reasoning emerges when students jointly solve problems regarding fair sharing. Three 6-year-old children worked collaboratively in a group with a problem related to fair sharing, and their teacher was present. The data, captured in video recordings, was analysed using two frameworks: collective mathematical reasoning, and the theory of joint problem space. The results show that different things, such as physical artefacts aimed at sharing resources, challenges related to the task, and the students’ conceptions of mathematics, affect the students’ possibilities to engage in collaborative collective mathematical reasoning.
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| 2. |
- Wallenstein, Sven-Olov
(författare)
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Public Space: Conflicts and Antinomies
- 2023
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Ingår i: Architecture Philosophy. - Stillwater : Oklahoma State University Library. - 2372-0883 .- 2372-0891. ; 6:1/2, s. 13-26
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Tidskriftsartikel (refereegranskat)
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| 6. |
- Markkanen, Peter, 1964-
(författare)
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Representationer, visualisering och resonemang i geometri : Praktiknära studier i digitala lärmiljöer
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this dissertation was to gain a deeper understanding of how teaching in digital environments can be designed to give students opportunities to develop knowledge in two- and three-dimensional geometry. The dissertation consists of two sub-studies, the first using an ethnographic approach in which the researcher followed a teacher's teaching in a digital environment, in a Grade 9 class for a period of five weeks. In the first study, learning was defined based on reification theory, which describes that the understanding of mathematical concepts develops from operational to structural understanding. Data were collected through video-assisted observations, interviews and student tests. This material was analyzed with a focus on the ways the teacher used the digital tools to create mathematical situations that offered students opportunities to work with different representations and mathematical concepts. In the second study, characterized as educational design research,t he researcher along with two teachers designed teaching in two classes in Grades 8 and 9. The focus in this second study was shifted to how geometry teaching in digital environments can be designed to offer students the opportunity to develop their understanding of, and ways of interpreting, geometric figures. For support in designing lessons, Brousseau's theory of didactical situations, based on a constructivist approach to learning, was adopted. Data were collected through video-assisted observations and screen recordings of students´ work. This material was analyzed in two steps. First, the focus was on how students worked with the figures in relation to the assumptions made in the design. Thereafter, the attention was on properties of the designed environment that were considered to affect the students and to lead to changes in how they interpreted and used the figures when working with geometric tasks. The study resulted in five design principles that can serve as a guide for designing teaching in digital environments. Thus, taken together, the dissertation´s two sub-studies show that using digital tools in teaching gives the teacher not only more didactic variables to work with when creating lessons, but also, based on the needs that arise in teaching, more tools for shedding light on what some students may have difficulty detecting. Furthermore, the results show that digital tools can help in the creation of environments that stimulate students' way of examining, testing and reasoning about geometric figures and their properties, which are seen as important prerequisites for developing good knowledge in the field.
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| 7. |
- Bodin Danielsson, Christina
(författare)
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Office type's association to employees' welfare : Three studies
- 2016
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Ingår i: Work. - : IOS Press. - 1051-9815 .- 1875-9270. ; 54:4, s. 779-790
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The workplace is important for employees' daily life and well-being. This article investigates exploratory the office design's role for employees' welfare from different perspectives. OBJECTIVE: By comparing different studies of the office, type's influence on different factors of employees' welfare the aim is to see if any common patterns exist in office design's impact. METHODS: The three included studies investigate office type's association with employees' welfare by measuring its influence on: a) perception of leadership, b) sick leave, and c) job satisfaction. The sample consists of office employees from a large, national representative work environment survey that work in one of the seven identified office types in contemporary office design: (1) cell-offices; (2) shared-room offices; (3) small, (4) medium-sized and (5) large open-plan offices; (6) flex-offices and (7) combi-offices. Statistical method used is multivariate logistic and linear regression analysis with adjustment for background factors. RESULTS: Overall results show that shared-room office, traditional open plan offices and flex-office stand out negatively, but to different degree(s) on the different outcomes measured. CONCLUSIONS: This explorative comparison of different studies finds a pattern of office types that repeatedly show indications of negative influence on employees' welfare, but further studies are needed to clarify this.
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| 8. |
- Järemo, Johannes, et al.
(författare)
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Plant compensatory growth: a conquering strategy in plant-herbivore interactions ?
- 2001
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Ingår i: Evolutionary Ecology. - 1573-8477. ; 15:2, s. 91-102
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Tidskriftsartikel (refereegranskat)abstract
- We present a theoretical analysis that considers the phenotypic trait of compensatory growth ability in a context of population dynamics. Our model depicts a system of three interactors: herbivores and two different plant types referred to as ordinary and compensating. The compensating plant type has the ability to increase its intrinsic rate of biomass increase as a response to damage. This compensatory growth ability is maintained at the expense of a reduced growth rate in the absence of damage, where the ordinary plant type has the higher growth rate. Analysis of this system suggests that, even though a compensatory capacity of this kind will not imply an increase in equilibrium plant density, it will give a competitive advantage in relation to other plants, in the presence of a sufficiently efficient herbivore. Invasion of compensating plants into a population of non-compensating plants is facilitated by a high compensatory growth ability and a high intrinsic rate of plant biomass increase. Conversely, an ordinary plant can invade and outcompete a compensating plant when the herbivore is characterised by a relatively low attack rate, and/or when plant intrinsic growth rate is decreased.
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| 9. |
- Paulsson, Björn, et al.
(författare)
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MAINLINE Project Results - A Summary : MAINtenance, renewal and improvement of rail transport INfrastructure to reduce Economic and environmental impacts
- 2014
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Rapport (refereegranskat)abstract
- Growth in demand for rail transportation across Europe is predicted to continue.Much of this growth will have to be accommodated on existing lines that contain old infrastructure. This demand will increase both the rate of deterioration of these elderly assets and the need for shorter line closures for maintenance or renewal interventions. However, interventions on elderly infrastructure will also need to take account of the need for lower economic and environmental impacts. This means that new interventions will need to be introduced. In addition tools will need to be developed to inform decision makers about the economic and environmental consequences of different intervention options being considered.
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