Book Reviewsjective schemes in terms of Gersten’s coniveau spectralsequence for the higher K-theory of rings. Finally, Chernclasses for rings and schemes are depicted in the contextof higher K-theory.The concluding Chapter 6 turns to the problem ofcomputing the higher K-groups of fields. More precisely,the goal of this chapter is to explain what the presentstate of knowledge of the algebraic K-theory of (number)fields is, thereby largely illuminating the historical developmentsfrom the early 1970s until now. This includestopics such as the K-theory of algebraically closed fields,the K-theory of R, relations to motivic cohomology, K 3ofa field, and various K-theoretic results for special numberfields, local fields, and the ring Z of integers.Each section of the book ends with a large set of relatedexercises, which are mainly of purely theoretical nature.These exercises mostly refer to additional conceptsand theorems from the respective research literature,therefore requiring intensive further reading. However,ample hints to the original papers are given throughoutthe text, thereby referring to the sweeping bibliographywith more than 230 references at the end of the book.Indeed, Charles Weibel’s “K-book” offers a plethoraof material from both classical and more recent algebraicK-theory. It is a perfect source book for seasoned graduatestudents and working researchers, who are willingand eager to follow the author’s expository path, andwho are ready for a lot of additional reading and self-reliantwork. The many instructive examples and clarifyingremarks help the reader grasp the essentials of algebraicK-theory from a panoramic view, and the entire expositionrepresents a highly valuable and useful guide to thesubject in all its diversity and topicality. Although barelybeing a textbook for neophytes in the field, despite thewealth of background material sketched wherever necessary,the book under review is certainly the most topicalpresentation of algebraic K-theory at this time, and anexcellent enhancement of the existing literature in anycase.References[1] Bass, Hyman. Algebraic K-theory. Mathematics Lecture Note Series.New York-Amsterdam: W.A. Benjamin (1968).[2] Swan, R.G. Algebraic K-theory. Lecture Notes in Mathematics 76.Berlin-Heidelberg-New York: Springer-Verlag (1968).[3] Milnor, John W. Introduction to algebraic K-theory. Annals ofMathematics Studies. No.72. Princeton, N. J.: Princeton UniversityPress and University of Tokyo Press (1971).[4] Srinivas, V. Algebraic K-theory. 2nd ed. Progress in Mathematics(Boston, Mass.) 90. Boston, MA: Birkhäuser (1996).[5] Rosenberg, Jonathan. Algebraic K-theory and its applications.Graduate Texts in Mathematics. 147. New York, NY: Springer-Verlag(19<strong>94</strong>).[6] Inassaridze, Hvedri. Algebraic K-theory. Mathematics and its Applications(Dordrecht). 311. Dordrecht: Kluwer Academic Publishers(1995).[7] Magurn, Bruce A. An algebraic introduction to K-theory. Encyclopediaof Mathematics and Its Applications. 87. Cambridge: CambridgeUniversity Press (2002).Werner Kleinert received his doctoraldegree in commutative algebra in 1971.After his postdoctoral qualification (habilitation)in the field of algebraic geometryin 1979, he was promoted to universitylecturer at Humboldt University inBerlin, an academic position that he heldthere until his retirement in 2010. His main research interestshave always been the geometry of moduli spacesof algebraic curves and abelian varieties, together with relatedtopics such as Riemann surfaces, theta functions andTeichmueller theory.Reviewer: Ghislaine GueudetEncyclopedia of MathematicsEducationStephen Lerman (Editor)Springer New York, <strong>2014</strong>xxii, 672 p.ISBN 978-<strong>94</strong>-007-4977-1An invitation to readThe Encyclopedia of Mathematics Education, written underthe direction of Stephen Lerman, was published in<strong>2014</strong> simultaneously as a traditional book and a dynamiconline resource on the Springer Reference website.This article does not claim to be a complete review ofthis Encyclopedia – I have not yet read all the 163 articles!Its aim is more to present the perspective retained by theEditorial Board and give a flavour of the content of theEncyclopedia, as an invitation to the potential reader.A comprehensive resource for a large audienceThe Encyclopedia project was to write a “comprehensivereference text, covering every topic in the field of mathematicseducation research” (Lerman, Preface, vii). Moreover,this text was to be informative, taking into accountthe very latest results of research, but also accessible toanyone who has an interest in mathematics education:not only researchers in mathematics education but alsomathematicians, teachers, students and policymakers. Forthis purpose, the Editorial Board has gathered togethera team of 174 authors from more than 30 countries, specialistsof different aspects of mathematics education.The entries can concern specific mathematic topics (andthe related learning and teaching issues) like “Algebrateaching and learning” (by Carolyn Kieran) and “CalculusTeaching and Learning” (by Ivy Kidron) or moretransverse issues like “Inquiry-based mathematics edu-58 EMS Newsletter December <strong>2014</strong>
Book Reviewscation” (by Jean-Luc Dorier and Katia Mass), “Problemsolving in mathematics education” (by Manuel Santos-Trigo) and “Instrumentation in mathematics education”(by Luc Trouche). They can also present theories or conceptsused in mathematics education like “Activity theoryin mathematics education” (by Wolff-Michael Roth)and “Didactic contract in mathematics education” (byGuy Brousseau). The content of the Encyclopedia actuallyrepresents the major results obtained in mathematicseducation over more than 40 years, with a variety ofperspectives (epistemological, cognitive, socio-cultural,etc.) developed by its international group of authors.Visiting the letter “M”An Encyclopedia can be a useful tool for answering aprecise question. It can also be viewed as a place to wander…Let’s try a brief random walk within the letter “M”of the Encyclopedia – one of the richest letters, with 25entries! (This is perhaps not surprising, since Mathematicsis the central focus here.) The first entry is entitled“Manipulatives in Mathematics Education” (by Maria G.Bartoloni Bussi and Francesca Martignone). This articlementions various kinds of manipulatives, ranging fromhistorical ones like Napier bones to very recent digitaltools, like the Bee-bot floor robot; it discusses the differencesbetween concrete and virtual manipulatives, froman educational perspective; it identifies critical issues,linked with the use of manipulatives, like students’ autonomyor their age (why are high school teachers oftenreluctant to use manipulatives in class?); it also presentsa theoretical approach, the semiotic mediation, whichis especially relevant to studying the learning-teachingprocesses when manipulatives are involved.After the “Manipulatives” entry, there starts a longlist of “Mathematical…” entries: “Mathematical ability”,“Mathematical approaches”, “Mathematical functionsteaching and learning”… Let’s read this one (by MogensNiss), which is the first article we meet in the list with afocus on a specific mathematical theme. Within the hugebody of research on this topic, the author retains a focuson students’ difficulties. Functions can have diverse representations:algebraic, graphical, tabular etc.; this causesseveral specific difficulties that have been clearly identifiedand has led to the design of teaching interventionsusing special software supporting the articulation ofseveral representations. Another dimension of complexityis that functions have different aspects: a simple correspondencelinking “every element in a given domainto one and only one element in another domain” is forthe learner very different from a tool intervening in themodelling of extra-mathematical situations, for example.“Mathematical Modeling and Applications in Education”and “Mathematical representations” are other entriesunder the letter M that can usefully complement thearticle about functions. “Mathematical Proof, Argumentationand Reasoning” also faces the challenge of synthesisingmultiple research works on the subject. In this article,Gila Hanna recalls that “a proof is much more thana sequence of logical steps that justifies an assertion” andthat it can play various roles in mathematics practice, likeestablishing connections and suggesting new hypotheses.It can also take different forms, remaining informal butproviding a high level of reliability. Teachers have to introducestudents to these different kinds of proofs and, atthe same time, teach them the rules of reasoning as wellas presenting patterns of argument. This is a delicate task,indicating the need for adequate teacher education (preserviceand in-service) – this connects us directly with the“Mathematics Teacher Education Organization” entry, afew steps further in the Encyclopedia… This article (byJarmila Novotná, Hana Moraová and Maria Tatto) offersan international view of the multiple existing organisationsfor teacher education but also discusses the skills,abilities, knowledge and attitudes that students graduatingfrom teacher preparation programmes should master.The reader interested in teacher education can go onand read the “Models of In-service Mathematics TeacherEducation” and “Models of Preservice MathematicsTeacher Education” entries and can naturally switch tothe letter T, where they will find, for example, “TeacherEducation Development Study – Mathematics (TEDS-M)”. The challenge here might be to stop reading theEncyclopedia!Final word (or not)Let us go back to the foreword of the Encyclopedia, writtenby Jeremy Kilpatrick:“This encyclopedia represents a major step forwardin the field of mathematics education, bringing to everyonewith a professional interest in mathematics educationaccess to the latest and best thinking in the field.”(Kilpatrick, Foreword, vi).Naturally, I fully support this enthusiastic statement.Moreover, this major step is not a final step, since theonline version should permit regular updates and discussionbetween authors and readers. For all your questionsabout research in mathematics education, you will findelements of answers in the Encyclopedia of MathematicsEducation and you can contribute with your commentsto a continuous improvement of its content!Ghislaine Gueudet is a professor of mathematicseducation at the ESPE Bretagne(School for Teacher Education). Shehas represented the French Associationfor Research in Mathematics Education(ARDM) on the French ICMI sub-commission(CFEM) since 2008 and also representsthe CFEM on the EMS Educational Committee.Her research concerns university mathematics educationand the design and use of educational resources (digitalresources in particular).EMS Newsletter December <strong>2014</strong> 59
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