Ce travail de didactique des mathématiques s'appuie sur le cadre de la Théorie des Situations Didactiques et s'intéresse à l'action conjointe des professeurs et des élèves dans un environnement numérique et à la dynamique que cette action conjointe engage. Il s'appuie aussi sur le cadre théorique de l'approche documentaire, qui complète et prolonge le cadre de l'approche instrumentale : les artefacts numériques présents dans cet environnement sont ainsi considérés comme des éléments du système documentaire des professeurs et des élèves. Considérant l'intégration de ces artefacts dans la classe ordinaire de mathématiques, nous mettons en évidence l'importance de moments particuliers, que nous nommons incidents didactiques, qui engagent des perturbations modifiant la dynamique de la classe. En développant cette notion d'incident didactique, nous construisons un cadre d'analyse permettant de mettre en évidence des phénomènes de genèse documentaire des enseignants et des élèves et d'en suivre les effets, à court ou à long terme, sur l'enseignement et l'apprentissage des mathématiques. Nous montrons que les incidents didactiques peuvent être, sous certaines conditions, des occasions de réorganisation locale et globale des connaissances pour le professeur dans le cadre de son enseignement ou pour l'élève dans son apprentissage des mathématiques / This work of mathematics education based on the framework of the theory of didactic situations, focuses on the joint action of teachers and students in a digital environment. We give an important place to the theoretical framework of documentary genesis, which complements and extends the scope of the instrumental genesis and considers artifacts as well as elements of the digital library system for teachers and students. In the general context of the use of technology in the regular classroom of mathematics, we seek to understand how the incidents are indicative of perturbations that change the dynamic of the class. In developing this notion of didactical incident, we build a framework to highlight the phenomena of documentational genesis of teachers and students and to monitor the short or long term eects on mathematics teaching and learning. We show that the didactical incidents, under certain conditions, oer opportunities for restructuring local and global knowledge for the teacher as part of his teaching or the student's learning of mathematics

Made available in DSpace on 2016-06-02T19:50:27Z (GMT). No. of bitstreams: 1 6827.pdf: 6176457 bytes, checksum: 823dd52eccef3613576b10cc5541f646 (MD5) Previous issue date: 2015-08-20 / Financiadora de Estudos e Projetos / The mechanization of sugarcane harvesting in Brazil has been presenting significant growth since 2007. The machines used in the fields were originally designed in Australia and were transferred to Brazil in the 70 s. Since its original conception, the design has suffered several modifications and improvements. In ergonomics, it is known that the appropriation of artifacts leads to a process of construction and reconstruction of uses and devices, so that the design continues in usage. With this regard, the present study aimed to analyze the process of design in use of sugarcane harvester machines and to contribute to the understanding of how users design. Considering that the machine was originated in Australia, the study also aimed to conduct a comparative study between the two situations, based on the principles of antropotechnology. Furthermore, given the historical participation of users in design process of sugarcane harvesters, the study also aimed to verify whether this participation still exists now that the design is controlled by multi-national equipment manufacturers. For this purpose, three case study were conducted in Brazil and two in Australia, according to the principles of Ergonomic Work Analysis. The obtained results describe the studied situations, the activity and operation, the modifications in machine s design performed by the harvesting teams, the elaboration process and the need for design improvements. The modifications in machines design were divided into three categories: structural, functional and operational. Structural modifications aimed to adapt the technology to Brazilian conditions: the soil characteristics and the duration of the harvesting season in the country. Functional modifications aimed to solve design problems not anticipated by designers during design process. Operational modifications represented the contribution of users and their activity to the design. In Brazil, several modifications were found and they were elaborated through the articulation of competences of two actors: harvester operator and harvester mechanic. Besides the differences in the amount of modifications, other differences between the two countries were the work organization and the harvesting strategies. It can be concluded that: 1) design in use is essential to adapt a technology to local conditions of usage; 2) the genesis of instrumental genesis is in the junction of operators activity and of mechanics inventory to practice bricolage as a way of designing, as well as the existence of social spaces of interaction between these subjects; 3) users participation, which has always been essential to the design of sugarcane harvester machines, is still crucial and can be reached through a dialogical approach of design. / A mecanização do corte de cana-de-açúcar no Brasil vem apresentando crescimento significativo desde 2007. As máquinas empregadas nos canaviais tiveram seu projeto originado na Austrália, sendo transferidas para o Brasil na década de 70. Desde sua concepção inicial, o projeto das máquinas sofreu diversas modificações e aprimoramentos. Na ergonomia, é sabido que a apropriação dos artefatos levam a um processo de construção e reconstrução de usos e dispositivos, de modo que o projeto continua no uso. Neste tocante, o presente estudo teve como objetivo principal analisar o processo de concepção no uso das máquinas colhedoras de cana-de-açúcar e contribuir para a compreensão de como os usuários projetam. Considerando que a máquina teve origem na Austrália, buscou-se realizar um estudo comparativo entre as duas condições de utilização, com base nos pressupostos da abordagem da antropotecnologia. Além disso, dado o histórico de participação de usuários no projeto das máquinas colhedoras de cana-de-açúcar, buscou-se compreender se essa participação ainda existe e como ela ocorre agora que a fabricação das máquinas é dominada por grandes fabricantes. Para isso, foram realizados estudos de caso em três situações no Brasil e duas situações na Austrália, segundo os pressupostos da Análise Ergonômica do Trabalho (AET). Os resultados obtidos descrevem as situações estudadas, a atividade e os detalhes da operação, as modificações no projeto realizadas pelas equipes, seu processo de elaboração e as necessidades de melhorias. As modificações no projeto foram divididas em três categorias: estruturais, funcionais e operacionais. As modificações estruturais visavam adequar a tecnologia às condições de uso do Brasil: características dos terrenos e a duração da operação das máquinas em uma safra brasileira. As modificações funcionais resolviam problemas de projeto não antecipados durante o processo de concepção dos projetistas. Já as modificações funcionais representaram a contribuição dos usuários e do desenvolvimento da atividade para o projeto. No Brasil foram encontradas inúmeras modificações, elaboradas através da articulação das competências de dois atores: operador de máquina e mecânico. Além das diferenças nas modificações no artefato, outras duas diferenças relevantes entre os países foram com relação à organização do trabalho e à estratégia de corte. Conclui-se que: 1) o projeto no uso é essencial para adequar uma tecnologia às condições de uso locais; 2) a gênese das gêneses instrumentais está na junção da atividade dos operadores e do repertório dos mecânicos para praticar a bricolagem, bem como na existência de espaços sociais de interação entre esses atores; 3) a participação dos usuários, que sempre foi fundamental para 8 o projeto das máquinas colhedoras de cana-de-açúcar, continua sendo essencial e pode ser alcançada através de uma abordagem dialógica de concepção.

Au sein du projet Tactiléo, nous considérons que l’appropriation d’une ressource numérique peut être évaluée sachant que « conception » et « usage » sont des processus itératifs. Nous proposons un modèle de conception et analyse d’usages de ressources numériques basé sur trois axes théoriques : la Théorie des Situations Didactiques (Brousseau, 1998) La Théorie de la Genèse Instrumentale (Rabardel, 1995) Et la Théorie de l’Activité (Leontiev, 1978 ; Vygotsky, 1978 ; Amigues, 2013). Nous avons construit une méthodologie pour évaluer l’appropriation de ressources numériques nous interrogeant : comment l’appropriation d’une ressource numérique peut-elle être évaluée lors de son usage ? Comment les résultats de l’évaluation de l’appropriation d’une ressource numérique peuvent-ils contribuer à sa réingénierie ? Et comment concevoir et utiliser un modèle de conception et d’analyse de ressources numériques basé sur l’appropriation ? Nous avons menées une étude exploratoire pour l’analyse d’une simulation en physique au collège ; l’analyse des réponses à un questionnaire par cinq équipes de concepteurs pour identifier les tâches qu’il est possible de prescrire à partir de la mise à profit des fonctionnalités techniques de la tablette ; une étude exploratoire de l’usage d’un jeu de cartes en tant qu’outil d’appui à la conception des situations d’apprentissage instrumentées par la tablette ; une analyse a priori du jeu Mets-toi à table ! (MTAT) pour identifier ses actions, activités et stratégies ; l’évaluation de l’appropriation du jeu MTAT par une classe (trace numérique d’interaction). / Within the Tactiléo project, we consider that the appropriation of a digital resource can be evaluated knowing that "design" and "use" are iterative processes. We propose a model of design and analysis of the uses of numerical resources based on three theoretical axes: The Theory of Didactic Situations (Brousseau, 1998) The Theory of Instrumental Genesis (Rabardel, 1995) and Theory of Activity, 1978, Vygotsky, 1978, Amigues, 2013). We constructed a methodology to evaluate the appropriation of digital resources interrogating us: how can the appropriation of a digital resource be evaluated during it is use? How can the results of the evaluation of the appropriation of a digital resource contribute to re-engineering it? And how to design and use a model of design and analysis of digital resources based on appropriation? We conducted an exploratory study for the analysis of a simulation in physics class at the college; The analysis of the answers to a questionnaire by five teams of designers to identify the tasks that can be prescribed from the use of the technical features of the tablet; An exploratory study of the use of a deck of cards as a tool to support the design of learning situations instrumented by the tablet; A priori analysis of the game Put yourself at the table! (MTAT) to identify its actions, activities and strategies; The evaluation of the appropriation of the MTAT game by a class (digital trace of interaction).

L’objet de notre recherche en didactique des mathématiques est d’étudier l’introduction des technologies numériques comme environnement complémentaire à des manipulations concrètes. Nous définissons les duos d’artefacts comme l’articulation fructueuse entre un artefact numérique et un artefact matériel qui soit une plus-value pour les apprentissages. L’approche instrumentale de Rabardel nous permet d’établir les critères de cette articulation; chaque artefact du duo enrichit l’autre à travers les instruments construits. Un duo d’artefacts provoque des genèses instrumentales associées. Afin de fonder les conditions d’un apprentissage au sens de Brousseau, un duo n’existe que lorsqu’il est mobilisé dans une situation didactique. Notre enjeu est alors d’élaborer un duo d’artefacts incluant le compas matériel en vue de la conceptualisation du triangle à partir de sa construction à la règle et au compas. La composition du duo et son orchestration dans une situation ont pour intention de faire émerger une nouvelle genèse instrumentale du compas et, selon les travaux de Duval, une déconstruction dimensionnelle 1D du triangle. Des expérimentations en classe nous ont permis de valider l’hypothèse selon laquelle la situation et le duo provoquent l’élaboration d’un nouvel instrument compas pour faire pivoter un segment. Le modèle de conceptions de Balacheff nous a aussi permis d’identifier l’évolution des conceptions des élèves sur le triangle et le cercle au fil de la situation, en particulier l’apparition d’une vision 1D du triangle comme une ligne brisée fermée et d’une caractérisation du cercle comme la trajectoire d’une extrémité d’un segment pivoté. / Our research project in didactics of mathematics is to study the use of digital technologies as a complementary environment to concrete manipulations. We define a duo of artefacts as the fruitful link between a digital artefact and a material one in such a way that this linking is an added value for the learning process. The instrumental approach of Rabardel allows us to establish the requirements for this link, each artefact enriching the other through the constructed instruments. A duo of artefacts sets off associated instrumental geneses. In order to base the conditions of the learning process, in the sense of Brousseau, a duo exists only when it is mobilized in a didactic situation. Our issue is to develop a duo of artifacts including the pair of compasses for the conceptualization of the triangle in the teaching of its geometric construction. The composition of the duo and its orchestration in a didactic situation are intended to bring out a new instrumental genesis of the compasses and, according to Duval's work, a 1D dimensional deconstruction of the triangle. Experiments in classes have enabled us to validate the hypothesis that the situation and the duo cause the development of a new pair of compasses instrument to rotate a segment. Balacheff's model of conceptions also allowed us to identify the evolution of pupils' conceptions of the triangle and the circle as the situation progressed, specifically the improvement of a 1D vision of the triangle as a closed broken line and a characterization of the circle as the trajectory of one end of a pivoted segment.

Läroboken utgör en stor roll i gymnasielärares undervisning både då det handlar om planering och genomförande. Studien syftar till att besvara hur läroboken används av gymnasielärare och hur lärarna frångår den. Det handlar både om när läroboken används samt vilket innehåll i den som används. Frångående av läroboken innebär att läraren avviker från det matematiska innehåll som presenteras i läroboken. Det kan exempelvis handla om att en lärare anpassar sin kommunikation till ett vardagligt och enkelt språk som inte uttrycks i läroboken. Studien är av kvalitativ karaktär och är en fallstudie. Resultatet är baserat i empiri av två informanter, där tillvägagångssätten är intervju, observation av lektion samt granskning av planeringsdokument och läromedel. Resultatet har analyserats utifrån ett antal teorier och begrepp, där de mest betydelsefulla för studien är orkestreringsteorin samt ett relationellt perspektiv mellan läraren och läroboken. Analysen visar att läroboken är synlig och används under alla studerade aktiviteter, både i lärarnas planering, genomgång på skrivtavlan samt under elevernas individuella räknande. Det framkommer även att lärarna inte alltid använder lärobokens innehåll i en kronologisk ordning och att lärarna hjälper eleverna att sålla bland mängden av uppgifter i läroboken. / The textbooks are an important foundation in the education of mathematics. The aim of this study is to examine how teachers in the upper secondary school actually use the textbook and to study when the textbook is absence in their teaching. The study aims to investigate, from a teacher’s perspective, when the textbook is being used and what content in the textbook that the teacher uses. The absence of the textbook implicates when and how the teachers deviate from the content and how the content is presented in the textbook. An example of absence of the textbook is when the teacher adapts the explanations of a mathematical content to an everyday language or to an informal way, which the textbook does not. The study is a qualitative case study and the results are founded in interviews with two informants and by an observation of their practice as teachers in mathematics. The teacher’s textbook and document that are used as planning materials are also reviewed and presented. The result of the study is analyzed by some theoretical concepts, where the theory of orchestration and the relation between the teacher and the textbook are of importance in this study. The analysis of the study implicates that the textbook in mathematics is visible in every moment that were investigated. This means that the textbook is visible in the planning of the course and lessons, in the instructions on the whiteboard lead by the teacher and when the pupils independently use the textbook. The analysis also showed that the use of the textbook was not always presented in a chronological order and that the teachers helped the pupils to organize the tasks in the textbook.

Submitted by Filipe dos Santos (fsantos@pucsp.br) on 2016-08-02T13:09:28Z No. of bitstreams: 1 Armenio Lannes Xavier Neto.pdf: 3326785 bytes, checksum: 01f2cd95a0b4753a310118f56f736d69 (MD5) / Made available in DSpace on 2016-08-02T13:09:28Z (GMT). No. of bitstreams: 1 Armenio Lannes Xavier Neto.pdf: 3326785 bytes, checksum: 01f2cd95a0b4753a310118f56f736d69 (MD5) Previous issue date: 2016-01-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The main objective of this thesis is to study through Instrumental Genesis of a real variable function with several sentences cognitive development process of a group of students from the 2nd and 3rd year of high school. The theoretical framework used in the study was the Theory of Instrumentation from the perspective of Pierre Rabardel and the Theory of Semiotics Representation Registers of Raymond Duval. The research question of the dissertation was: "How is the Genesis Instrumental of a real variable function with several sentences in the second students and third years of high school, during a sequence of activities?" The methodology used in the study were the assumptions the didactic engineering Artigue. The conclusions of the study indicated that the Genesis Instrumental can be a suitable tool to study the cognitive development process of a real variable function with several sentences / O objetivo principal dessa dissertação é estudar por meio da Gênese Instrumental da função de uma variável real com várias sentenças o processo de desenvolvimento cognitivo de um grupo de alunos do 2o e 3o ano do ensino médio. Os referenciais teóricos utilizados no trabalho foram a Teoria da Instrumentação sob a ótica de Pierre Rabardel e a Teoria dos Registros de Representação Semiótica, de Raymond Duval. A pergunta investigativa da dissertação foi: “De que maneira ocorre a Gênese Instrumental da função de uma variável real com várias sentenças em alunos do 2o e 3o anos do ensino médio, durante uma sequência de atividades?” A metodologia utilizada no trabalho foram os pressupostos da engenharia didática de Artigue. As conclusões do trabalho indicaram que a Gênese Instrumental pode ser uma ferramenta adequada para estudar o processo de desenvolvimento cognitivo da função de uma variável real com várias sentenças

Made available in DSpace on 2016-04-27T16:58:55Z (GMT). No. of bitstreams: 1 Jesus Victoria Flores Salazar.pdf: 3824721 bytes, checksum: 90508afa3a224018db018f851b864a0e (MD5) Previous issue date: 2009-06-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This thesis has the purpose of observing how students from the 2nd year of High School make use of geometric transformations of space when interacting with the environment of Dynamic Geometry Cabri 3D, as well as what kind of reasoning they use when developing activities concerning this content. Thereby, this work intends to answer the following questions: How do students make use of the tools and/or resources of Cabri 3D in order to learn the geometric transformations of space? How does the integration of Cabri 3D interfere in the process of learning these geometric transformations? The methodology adopted used aspects of Didactics Engineering, according to Artigue (1988). The theoretical foundation was the Instrumental Approach of Rabardel (1995) to enable the understanding of how students interact with Cabri 3D and which contents they make use of during the development of a sequence of activities. In addition, the theory of Register of Semiotics Representation of Duval (1995) was used, specifically the apprehensions of a figure. The analyses of the activities which involve notions of geometrical transformation of space helped us realize other possibilities that the instruments can give the subjects as well as different ways of organizing the actions. Moreover, the activities made the development of different strategies easier for students who used the Cabri 3D and students established relationships between the software and mathematical knowledge. We verified the occurrence of Instrumental Genesis, because the students actions showed pre-established schemes or the development of new schemes. At the same time, the use of Cabri 3D helped the perceptive apprehension of the figures and allowed to become dynamic. This way, Cabri 3D permitted the dynamic figural register, facilitated the positional modification and the other modifications of figures, and their visualization / Esta tese teve por objetivo observar como estudantes do segundo ano do Ensino Médio apropriam-se das transformações geométricas no espaço, quando interagem com o ambiente de Geometria Dinâmica Cabri 3D, bem como qual raciocínio mobilizam quando desenvolvem atividades que abrangem esse conteúdo. Assim, a pesquisa pretendeu responder às seguintes questões: de que maneira, os estudantes apropriam-se das ferramentas e/ou recursos do Cabri 3D na aprendizagem das transformações geométricas no espaço? Como a integração do Cabri 3D interfere no processo de aprendizagem dessas transformações geométricas? A metodologia do estudo apoiou-se nos pressupostos da Engenharia Didática de Artigue (1988). O referencial teórico baseou-se na Abordagem Instrumental de Rabardel (1995a) para compreender como os alunos interagem com o Cabri 3D e quais conteúdos mobilizam no desenvolvimento da sequência de atividades e na teoria dos Registros de Representação Semiótica de Duval (1995), especificamente, nas diferentes apreensões de uma figura. A análise das atividades ajudou a perceber outras possibilidades que os instrumentos podem oferecer aos sujeitos e as diferentes maneiras de organizar suas ações. Além disso, as atividades facilitaram o desenvolvimento de distintas estratégias no uso do Cabri 3D e o estabelecimento de relações entre o software e os conhecimentos matemáticos dos estudantes. Constatou-se a ocorrência do processo de Gênese Instrumental, visto que as ações dos alunos evidenciaram esquemas de utilização preestabelecidos ou o desenvolvimento de novos esquemas. Ao mesmo tempo, o uso do Cabri 3D facilitou a apreensão perceptiva das figuras e permitiu dinamizá-las. Nesse sentido, o Cabri 3D propiciou o registro figural dinâmico, facilitou a modificação posicional e as outras modificações das figuras, além de auxiliar em sua visualização

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Cette thèse défend un modèle de l’entrepreneuriat en équipe en tant que processus dynamique, en évolution au niveau global et systémique, médiatisé par les TIC. Nous présentons l’entrepreneuriat en équipe comme une activité en contexte, qui s’incarne dans une culture, une histoire, un environnement, et qui se développe au travers même des moments d’interaction qu’elle génère. Ces moments de coopération et de coordination en équipes localisées, ou multi-localisées (Vacherand-Revel, 2017) constituent des espaces d’intersubjectivité (Zarifian 1996) dans lesquels différents artefacts entrent en jeu. Nous émettons l’hypothèse que ces artefacts dans l’activité vont participer activement au développement de l’activité entrepreneuriale innovante en servant de support à la formation des équipes, à l’élaboration des idées, et à la conception. Basées sur un protocole méthodologique qualitatif et développemental, nos analyses mettent en évidence plusieurs facteurs et ressources de l’activité, notamment le dispositif de formation entrepreneuriale, et les artefacts mobilisés par les acteurs. Ces artefacts dans l’activité (Adé, 2000), sont transformés en artefacts de l’activité au cours de processus de genèse instrumentale (Rabardel, 1995). Ils peuvent alors prendre un statut d’objets intermédiaires (Vinck, 1999, 2009) ou d’objets-frontières (Star, 2010, Vinck, 2009) au sein de l’activité. Les analyses montrent le rôle prépondérant de l’objet d’innovation, qui est l’œuvre commune de l’équipe. Il est à la fois un aboutissement et un point de départ permettant le développement des intentions de l’équipe et de la trajectoire du projet. L’objet d’innovation nait d’un processus de conception et de création (Almudever, 2012). Ces analyses montrent l’interdépendance des situations de coopération et de conception collective dans la formalisation de l’objet d’innovation. La nature du projet entrepreneurial, objet construit et en construction, souligne l’intérêt d’un dialogue entre théories de l’activité et théories de l’action. / This thesis defends a model of entrepreneurship as a dynamic, global and systemic process, mediated by technologies. We present entrepreneurship as an activity in context, embodied in a culture, a story, an environment, and which develops itself through interactions. The moments of cooperation and coordination in localized teams, or multi-localized teams (Vacherand-Revel, 2017) constitute spaces of intersubjectivity (Zarifian 1996) in which different artefacts are used. We hypothesize that these artifacts in the activity will actively participate in the development of innovative entrepreneurial activity by providing support for team training, idea development, and design. Based on a qualitative and developmental methodological protocol, the analysis highlights several factors and resources of the activity, in particular the entrepreneurial training device, and the artefacts mobilized by the actors. These artifacts in the activity (Adé, 2000) are transformed into artifacts of the activity during instrumental genesis processes (Rabardel, 1995). They can then take a status of intermediate objects (Vinck, 1999, 2009) or boundary objects (Star, 2010, Vinck, 2009) within the activity. The analysis shows the predominant role of the innovation object, which is a common production of the team. It is both an outcome and a starting point for the development of intentions and the trajectory of the project. The innovation object arises from a process of design and creation (Almudever, 2012). This research shows the interdependence of the situations of cooperation and collective design in the formalization of the innovation object. The nature of the entrepreneurial project – an object built and under construction - highlights the interest of a dialogue between Activity theory and Action theories.

Au cours des dernières décennies, l'immigration d'enfants d'origine africaine en Ontario n'a cessé de croître. Le système scolaire franco-ontarien censé les accueillir, en plus de recommander la résolution de problème comme moyen d'apprentissage des mathématiques dès les premiers apprentissages, est grandement axé sur l'intégration des nouvelles technologies de l'information et de la communication (TIC). Or, l'utilisation des TIC dans le secteur de l'éducation de la majorité des pays d'Afrique subsaharienne d'où arrivent ces élèves est peu développée. La présente étude explore l'expérience vécue par des élèves du primaire d'origine africaine subsaharienne immigrants récents en Ontario (élèves ASSI) en situation de résolution de problème mathématique (RP) intégrant la technologie. Elle permet de mieux comprendre le rôle qu'occupe un logiciel de géométrie dynamique (LGD) dans un tel dispositif d'apprentissage. L'approche méthodologique choisie est celle d'une recherche qualitative/interprétative menée sous la forme d'une étude de cas multiples. Deux dyades d'élèves ASSI (quatre élèves) ont été observées en situation de RP usant de LGD puis rencontrées. Pour nos analyses, nous avons eu recours à la triangulation des théories de notre cadre théorique: l'approche socioconstructiviste de Vygotsky, la théorie instrumentale de Trouche et le modèle de résolution de problème de mathématiques de Pólya. Le croisement des données d'observations des processus d'instrumentalisation et d'instrumentation et des processus de résolution de problème a permis d'apporter des éléments de réponse à notre question de recherche. Les résultats révèlent, d'une part, que le LGD occupe une place prépondérante dans la construction de connaissances chez les élèves ASSI et le développement de leurs habiletés de résolution de problèmes, d'autre part que les propos des élèves quant au dispositif d'apprentissage sont certes nuancés, mais majoritairement positifs. Cette recherche contribue à favoriser l'inclusion dans les classes de mathématiques du primaire de la minorité africaine subsaharienne en contexte minoritaire francophone de l'Ontario. -- Over the past few decades, the immigration of children of African origin to Ontario has increased. The Franco-Ontarian school system supposed to welcome them, in addition to recommending problem solving as a means of learning mathematics from the very first learning, is largely focused on the integration of new information and communication technologies (ICT). However, the use of ICT in the education sector of most sub-Saharan African countries from which these students come from is not very developed. This study explores the experience of elementary school's students of sub-Saharan African origin who are recent immigrants to Ontario (ASSI students) in a situation of mathematical problem solving (PR) integrating technology. It provides a better understanding of the role played by the dynamic geometry software (DGS) in such a learning device. The chosen methodological approach is that of qualitative/interpretative research conducted in the form of a multiple case study. Two dyads of ASSI students (four students) were observed in a PR situation using DGS and then were met. For our analyses, we resorted to the triangulation of the theories of our theoretical framework: the socioconstructivist approach of Vygotsky, the instrumental theory of Trouche and the mathematical problem-solving model of Pólya. The cross-referencing of the observation data of the instrumentalization and instrumentation processes and the problem-solving processes has made it possible to identify certain elements of the answer to our research question. The results reveal, on the one hand, that the DGS occupies a preponderant place in the construction of knowledge among ASSI students and the development of their problem-solving skills, on the other hand, that the students' words about the learning are certainly nuanced, but mostly positive. This research contributes to promoting the inclusion in primary mathematics classes of the sub-Saharan African minority in a French-speaking minority context in Ontario.