Activity and Sign

Grounding Mathematics Education : Michael Otte's contribution / Michael Hoffmann, Johannes Lenhard and Falk Seeger -- Mathematics, Sign and Activity / Michael Otte -- A. Sign Processes -- Agency and Creativity in the Semiotics of Learning Mathematics / Paul Ernest -- The Semiotic Approach to Mathematical Evidence and Generalization / Susanna Marietti -- Signs as Means for Discoveries : Peirce and His Concepts of "Diagrammatic Reasoning," "Theorematic Deduction," "Hypostatic Abstraction", and "Theoric Transformation" / Michael Hoffmann -- Diagrammatic Thinking : Affordances and Constraints / Willibald Dorfler -- Notes on a Semiotically Inspired Theory of Teaching and Learning / Falk Seeger -- B. Sign Processes in the Mathematics Classroom -- Semiotic Mediation in the Primary School : Durer's Glass / Maria G. Bartolini Bussi, Maria Alessandra Mariotti and Franca Ferri -- Do Mathematical Symbols Serve to Describe or Construct "Reality"? : Epistemological Problems in Teaching Mathematics in the Field of Elementary Algebra / Heinz Steinbring -- Metaphor and Metonymy in Processes of Semiosis in Mathematics Education / Norma Presmeg -- On Practical and Theoretical Thinking and Other False Dichotomies in Mathematics Education / Anna Sierpinska -- The Semiotics of the Schema : Kant, Piaget, and the Calculator / Luis Radford -- C. Mathematics Education as a Science -- Towards a Normal Science of Mathematics Education? / Kenneth Ruthven -- The Study of the Didactical Conditions of School Learning in Mathematics / Guy Brousseau -- The Formal, the Social and the Subjective : Variations on a Theme of Michael Otte / Roland Fischer -- D. Crossing Boundaries -- Reflective learning : Problems and Questions Concerning a Current Contextualization of the Vygotskian Approach / Bernd Fichtner -- Thinking and Knowing about knowledge : A Plea for and Critical Remarks on Psychological Research Programs on Epistemological Beliefs / Rainer Bromme -- The Cognitive Unconscious : Recalling the History of the Concept and the Problem / Thomas Mies -- E. History of Mathematics and Mathematics Education -- Hilbert, Weyl, and the Philosophy of Mathematics / Hans Niels Jahnke -- Mathematical Metaphors in Natorp's Neo-Kantian Epistemology and Philosophy of Science / Thomas Mormann -- Newton's Program of Mathematizing Nature / Karl-Norbert Ihmig -- Did Hermann and Robert Grassmann Contribute to the Emergence of a Formal Axiomatics? / Mircea Radu -- A Case Study in Generalization : The Notion of Multiphcation / Gert Schubring -- Some German Contributions to Mathematics Research in Brazil / Circe Mary Silva da Silva Dynnikov -- F. Making Philosophy of Mathematics Relevant -- ata Structures and Virtual Worlds : On the Inventiveness of Mathematics / Andreas Dress -- Variables, in Particular Random Variables / Hermann Dinges -- Deduction, Perception and Modeling : The Two Peirces on the Essence of Mathematics / Johannes Lenhard -- Models of Data, Theoretical Models and Ontology : A Structuralist Perspective / C. Ulises Moulines -- Some Sober Conceptions of Mathematical Truth / Marco Panza -- Can There Be an Alternative Mathematics, Really? / Jean Paul van Bendegem -- G. Coda -- An Interview with Michael Otte / Roland Fischer.