Representation des fractions et des nombres decimaux chez des eleves de cm2 et du college PDF Download

Author: Marie Jeanne Perrin-Glorian
Publisher:
ISBN:
Category :
Languages : fr
Pages : 54

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Author: Bernard Anselmo
Publisher:
ISBN: 9782240036384
Category :
Languages : fr
Pages :

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Les programmes de 2016 élargissent l'apprentissage de la construction des fractions et décimaux à l'ensemble du cycle 3. C'est pourquoi les auteurs de l'ouvrage et du site qui l'accompagne proposent une programmation d'apprentissage du CM1 à la sixième. Ces documents aideront les enseignants à mettre en place des activités qui permettront à tous les élèves arrivant au terme de la sixième de disposer d'une solide connaissance des significations des écritures décimales ou fractionnaires des nombres. Après avoir effectué une courte approche historique de l'émergence des décimaux, les auteurs présentent l'évolution des programmes concernant ces derniers, développent leur réflexion sur l'apprentissage des" fractions" et des" décimaux", en étudient les conceptions sous-jacentes et précisent celles qu'ils souhaitent voir installées chez les élèves. Ils détaillent ensuite la programmation des apprentissages qu'ils ont conçue afin que tous les élèves puissent aborder les décimaux de façon rationnelle et cohérente. Très largement expérimentée dans les classes, cette programmation s'appuie sur les fractions et : - propose 15 situations recouvrant pour une large part la partie" travaux numériques" des programmes ; - détaille chacune des situations : description de l'activité, objectif(s), durée, déroulement, institutionnalisation, prolongement(s) ; - prévoit des documents téléchargeables à imprimer ou à projeter pour une utilisation immédiate en classe.

Author: Abdul Aziz Alahmadati
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0

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La présente étude s'intéresse particulièrement au concept mathématique de fraction et à son enseignement-apprentissage au cycle 3 de l'école primaire en France. Ce concept étant souvent difficile à comprendre par les élèves, il est introduit formellement dès la classe de CM1 du cycle 3 de l'école primaire.L'objectif de cette recherche a été, dans un premier temps, l'étude de l'enseignement des fractions. Pour ce faire, sont analysées les situations d'apprentissage qui proposent des activités portant sur les fractions dans cinq manuels scolaires de mathématiques de CM1 et cinq manuels de CM2, de même collection ; le but est de connaître les différentes significations de la fraction présentes dans ces manuels.Dans un deuxième temps, l'objectif de cette recherche fut de savoir ce qu'il reste chez les élèves après qu'ils ont étudié les fractions. Pour cela, un échantillon de 275 sujets, 160 de CM1 et 115 de CM2 de l'école primaire, ont répondu à un questionnaire écrit portant sur les fractions. Le but est d'étudier les conceptions et les représentations chez ces élèves à l'égard de la notion de fraction, en particulier à l'égard des différentes significations de la fraction données par ces élèves.Dans un troisième temps, nous voulions connaître les conceptions de quelques enseignants sur la manière avec laquelle ils abordent les fractions avec leurs élèves. Pour ce faire, 8 enseignants parmi les 12 enseignants des classes concernées ont participé à l'étude.L'analyse effectuée sur les manuels scolaires a été faite à l'aide d'une grille d'analyse, les résultats de cette analyse relèvent que les activités ou les situations d'apprentissage proposées dans les manuels scolaires choisis ne sont pas réparties à égalité entre les diverses significations de la fraction. De plus, les significations de la fraction les plus présentes dans les manuels scolaires de CM1 à travers les activités analysées sont respectivement les suivantes : Partie-tout (quantité continue), Mesure, Nombre ; dans les manuels scolaires de CM2, les significations les plus présentes sont respectivement les suivantes : Nombre, Partie-tout (quantité continue) et Mesure. En revanche, les activités relatives aux autres significations sont généralement présentes, mais avec des fréquences réduites.Pour traiter de l'apprentissage des fractions chez les élèves, l'analyse s'est effectuée autour des connaissances et des représentations des élèves de CM1 et de CM2 par rapport aux différentes significations de la fraction. Cette analyse, effectuée sur les réponses des élèves sur le questionnaire, montre que la signification de la fraction la plus utilisée, par les élèves de CM1 et de CM2, est celle de Partie d'un tout (quantité continue). Les significations Nombre, Mesure, Partie d'un tout (quantité discrète) et Nombre sur une droite graduée sont présentes dans les réponses des élèves. En revanche, les autres significations sont celles qui sont les moins utilisées par les élèves. De plus, en ce qui concerne les significations manifestées de la fraction, les élèves de ces deux niveaux scolaires ne diffèrent pas beaucoup. Enfin, notre étude permet de constater que les élèves utilisent les significations de la fraction les plus fréquemment présentes dans les manuels scolaires, cela nous donne un éclairage sur l'objet de l'influence de l'enseignement des fractions sur l'apprentissage des élèves.Afin de connaître les conceptions pédagogiques et épistémologiques des enseignants sur leur manière d'aborder l'enseignement de la fraction, nous avons construit les données au moyen d'une enquête par questionnaire auprès de 8 enseignants. Les réponses à ce questionnaire ont été analysées suivant deux perspectives, pédagogique et mathématique.....

Author: Marc Jacobs
Publisher:
ISBN:
Category : Cooking
Languages : en
Pages : 440

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The meaning of eating out clearly varies enormously depending on the setting, circumstances and significance of the meal. The contributors describe and interpret the huge changes that occurred in eating habits throughout Europe by analyzing such factors as urbanization, technological innovation, demographic growth, employment patterns and identity formation. [from publisher's website].

Author: James Hiebert
Publisher: Routledge
ISBN: 9780805803532
Category : Education
Languages : en
Pages : 0

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For many students, learning mathematics in the middle grades represents a watershed activity. If they fall behind or fail at this point, they are unlikely to recover and to pursue a career in the sciences or other mathematics-dependent occupations. The authors reveal at least two of the reasons for this watershed experience. First, the content itself is much more complex than that at the primary grades, a complexity that is only now being fully appreciated. Second, conventional instruction often is based on faulty assumptions about the way in which the content is learned. The chapters present the latest understanding of the nature of the mathematics content in the middle grades and the processes by which it is learned.

Author: Eric de Corte
Publisher: CRC Press
ISBN: 9789026516283
Category : Education
Languages : en
Pages : 232

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Word problems have been a staple of mathematics instruction for centuries, yet the rationale for their use has remained largely unexamined. A range of findings have shown how students consistently answer them in ways that fail to take account of the reality of the situations described. This monograph reports on studies carried out to investigate this "suspension of sense-making" in answering word problems. In Part One, a wide range of examples documenting the strength of the phenomenon is reviewed. Initial surprise at the findings was replaced by a conviction that the explanation lies in the culture of the mathematics classroom, specifically the rules implicitly governing the nature and interpretation of the word problem genre. This theoretical shift is reflected in Part Two. A detailed analysis of the way in which word problems are currently taught in typical mathematical classrooms is followed by reviews of design experiments illustrating how, by immersing students in a fundamentally changed learning environment, they can acquire what the authors consider to be more appropriate conceptions about, and strategies for doing, word problems. Part Three turns to a wider discussion of theoretical issues, a further analysis of the features of the educational system considered responsible for outcomes detrimental to many students' understanding and conception of mathematics, and suggestions for rethinking the role of word problems within the curriculum.

Author: Anne Watson
Publisher: Springer
ISBN: 331909629X
Category : Education
Languages : en
Pages : 339

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*THIS BOOK IS AVAILABLE AS OPEN ACCESS BOOK ON SPRINGERLINK* This open access book is the product of ICMI Study 22 Task Design in Mathematics Education. The study offers a state-of-the-art summary of relevant research and goes beyond that to develop new insights and new areas of knowledge and study about task design. The authors represent a wide range of countries and cultures and are leading researchers, teachers and designers. In particular, the authors develop explicit understandings of the opportunities and difficulties involved in designing and implementing tasks and of the interfaces between the teaching, researching and designing roles – recognising that these might be undertaken by the same person or by completely separate teams. Tasks generate the activity through which learners meet mathematical concepts, ideas, strategies and learn to use and develop mathematical thinking and modes of enquiry. Teaching includes the selection, modification, design, sequencing, installation, observation and evaluation of tasks. The book illustrates how task design is core to effective teaching, whether the task is a complex, extended, investigation or a small part of a lesson; whether it is part of a curriculum system, such as a textbook, or promotes free standing activity; whether the task comes from published source or is devised by the teacher or the student.

Author: E. Glasersfeld
Publisher: Springer Science & Business Media
ISBN: 0306472015
Category : Education
Languages : en
Pages : 264

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Mathematics is the science of acts without things - and through this, of things one can define by acts. 1 Paul Valéry The essays collected in this volume form a mosaik of theory, research, and practice directed at the task of spreading mathematical knowledge. They address questions raised by the recurrent observation that, all too frequently, the present ways and means of teaching mathematics generate in the student a lasting aversion against numbers, rather than an understanding of the useful and sometimes enchanting things one can do with them. Parents, teachers, and researchers in the field of education are well aware of this dismal situation, but their views about what causes the wide-spread failure and what steps should be taken to correct it have so far not come anywhere near a practicable consensus. The authors of the chapters in this book have all had extensive experience in teaching as well as in educational research. They approach the problems they have isolated from their own individual perspectives. Yet, they share both an overall goal and a specific fundamental conviction that characterized the efforts about which they write here. The common goal is to find a better way to teach mathematics. The common conviction is that knowledge cannot simply be transferred ready-made from parent to child or from teacher to student but has to be actively built up by each learner in his or her own mind.

Author: Christine Keitel-Kreidt
Publisher: Springer
ISBN: 9783540572770
Category : Education
Languages : en
Pages : 332

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The NATO Advanced Research Workshop on Mathematics Education and Technology was held in Villard-de-Lans, France, between May 6 and 11, 1993. Organised on the initiative of the BaCoMET (Basic Components of Mathematics Education for Teachers) group (Christiansen, Howson and Otte 1986; Bishop, Mellin-Olsen and van Dormolen 1991), the workshop formed part of a larger NATO programme on Advanced Educational Technology. Some workshop members had already participated in earlier events in this series and were able to contribute insights from them: similarly some members were to take part in later events. The problematic for the workshop drew attention to important speculative developments in the applications of advanced information technology in mathematics education over the last decade, notably intelligent tutoring, geometric construction, symbolic algebra and statistical analysis. Over the same period, more elementary forms of information technology had started to have a significant influence on teaching approaches and curriculum content: notably arithmetic and graphic calculators; standard computer tools, such as spreadsheets and databases; and computer-assisted learning packages and computer microworlds specially designed for educational purposes.

Author: Norma Gonzalez
Publisher: Routledge
ISBN: 1135614059
Category : Education
Languages : en
Pages : 332

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Book Description
The concept of "funds of knowledge" is based on a simple premise: people are competent and have knowledge, and their life experiences have given them that knowledge. The claim in this book is that first-hand research experiences with families allow one to document this competence and knowledge, and that such engagement provides many possibilities for positive pedagogical actions. Drawing from both Vygotskian and neo-sociocultural perspectives in designing a methodology that views the everyday practices of language and action as constructing knowledge, the funds of knowledge approach facilitates a systematic and powerful way to represent communities in terms of the resources they possess and how to harness them for classroom teaching. This book accomplishes three objectives: It gives readers the basic methodology and techniques followed in the contributors' funds of knowledge research; it extends the boundaries of what these researchers have done; and it explores the applications to classroom practice that can result from teachers knowing the communities in which they work. In a time when national educational discourses focus on system reform and wholesale replicability across school sites, this book offers a counter-perspective stating that instruction must be linked to students' lives, and that details of effective pedagogy should be linked to local histories and community contexts. This approach should not be confused with parent participation programs, although that is often a fortuitous consequence of the work described. It is also not an attempt to teach parents "how to do school" although that could certainly be an outcome if the parents so desired. Instead, the funds of knowledge approach attempts to accomplish something that may be even more challenging: to alter the perceptions of working-class or poor communities by viewing their households primarily in terms of their strengths and resources, their defining pedagogical characteristics. Funds of Knowledge: Theorizing Practices in Households, Communities, and Classrooms is a critically important volume for all teachers and teachers-to-be, and for researchers and graduate students of language, culture, and education.