Transformation - A Fundamental Idea of Mathematics Education 87 The author also desires to

The author also desires to thank Dr

3Bestimmung des Prolongationseffektes65

with papers in the final program coming from seven different countries

den derzeitigen Stand der Rechtslage aufzuzeigen sowie auf Tendenzen hinzuweisen

Aus- und (Weiter-) Bildung13

Transformation - A Fundamental Idea of Mathematics Education 87 The author also desires toThe diversity of research domains and theories in the field of mathematics education has been a permanent subject of discussions from the origins of the discipline up to the present. On the one hand the diversity is regarded as a resource for rich scientific development on the other hand it gives rise to the often repeated criticism of the disciplines lack of focus and identity. As one way of focusing on core issues of the discipline the book seeks to