Search results for "Transposition"

Problems with variation in teaching/learning Geometry: an example of Chinese Cultural Transposition

2022

This paper discusses some theoretical/methodological observation and some qualitative results coming from a Cultural Transposition experience, implemented in the Italian school context (grade 8), according to the methodology of variation, as one of the most significant problem solving approach in Chinese schools. The framework of the Cultural Transposition and the methodology of variation are presented as an important condition for “decentralizing” the didactic practice from a specific social and cultural context. We argue that looking at different teaching/learning mathematics strategies coming from East-Asia cultures can favor some cultural contaminations at school and allow students to a…

SORTING ALGORITHMS FOR 5TH AND 6TH GRADE STUDENTS: GREEDY OR COOPERATIVE?

2016

Our main research goal lies in a proposal to discuss the lack of, and improve, activities in the Italian school curriculum about discrete mathematics, computer algorithms and cryptography, especially for 3rd to 8th grade students. Activities of this kind are missing almost entirely, both in the school programs and in textbooks, despite many agree that they can be really useful to improve both general skills, such as reasoning and modeling, and skills particular to discrete mathematics, such as algorithmic and recursive thinking. A survey among various grades teachers confirmed this. The activity we are going to describe fits into a wider research project. Design research, chosen as the meth…

L’historien et ses modèles

2010

Parler des modèles en histoire est une affaire délicate, car le mot recouvre des pratiques historiennes différentes depuis son apparition dans la discipline, après la dernière guerre mondiale. Pour une minorité d’historiens surtout spécialisés en histoire économique, il correspond à une vision nouvelle de la discipline qui tenterait d’intégrer certaines démarches mathématiques, en particulier aujourd’hui la théorie des jeux. Pour d’autres, en revanche, parler de modèles relèverait surtout d’une évolution du vocabulaire, sans impliquer de véritable mutation disciplinaire. Les historiens construisent et utilisent surtout des modèles explicatifs, voire palliatifs quand ils ont de trop grandes …

New perspective of learner-centered education in nowadays didactics

2017

An approach to education that is based on the educational context in which the student comes and track progress in achieving the learning objectives. The learner-centred education learning places the responsibility on the shoulders of students, while the teacher takes responsibility for facilitating the education process. The approach tends to be unique, flexible, competency-based methodology and not always varied in time and space constrained. Teaching will have complex changes, so if, traditionally, it is just a business communication / transmission of knowledge, actual perspectives follows specifically aims in organizing and managing learning processes. According to the researchers in th…

Calculus Artefacts in Chinese Textbooks: Variational Approaches with Prospective Primary Teachers

2022

The first part of the paper presents some theoretical reflections and some methodological notes about a Professional Development (PD) path worked out during the last two years by Italian researchers for prospective primary teachers. The theoretical construct of Cultural Transposition defines the framework of the PD path’s activities and the related research. It was used to define an interesting cultural lens to delineate possible new approaches for effective pre-service teacher education programs in particular for the primary level. The defined methodology was based on the possibility to reflect on the he decentralization of didactic practices based on a specific cultural context through on…

Etude des mécanismes à l'origine de la dispersion des gènes codant les enzymes responsables de la minéralisation de l'atrazine au sein de la microflo…

2006

Le juge administratif, garant de la qualité de l'air

2018

International audience

Task design for Engineering Mathematics: process, principles and products

2018

International audience; We present and analyse principles and process employed at the Danish Technical University to use authentic problems from engineering (APE) in a first year mathematics course, along with some of the products (actual student assignments).

Carnaval tragique. Des masques du nihilisme de Pavese (Tra donne sole) au nihilisme masqué d’Antonioni (Le amiche)

2011

International audience

Hyperplastic Conotruncal Endocardial Cushions and Transposition of Great Arteries in Perlecan-Null Mice

2002

Perlecan is a heparan-sulfate proteoglycan abundantly expressed in pericellular matrices and basement membranes during development. Inactivation of the perlecan gene in mice is lethal at two developmental stages: around E10 and around birth. We report a high incidence of malformations of the cardiac outflow tract in perlecan-deficient embryos. Complete transposition of great arteries was diagnosed in 11 out of 15 late embryos studied (73%). Three of these 11 embryos also showed malformations of semilunar valves. Mesenchymal cells in the outflow tract were abnormally abundant in mutant embryos by E9.5, when the endocardial-mesenchymal transformation starts in wild-type embryos. At E10.5, mut…