Das Buch beleuchtet - ausgehend von einer Analyse des Variablenbegriffs und der Verwendung von Variablen in verschiedenen Bereichen - den Stellenwert dieses Gebietes neu. Dabei wird vor allem die traditionelle Gleichungslehre kritisch unter die Lupe genommen. Zahlreiche Fallstudien (Interviews mit Sch�lern) stellen die angestellten �berlegungen auf eine solide empirische Basis. Davon ausgehend werden detaillierte methodische Vorschl�ge zur Behandlung dieses Stoffgebietes im Unterricht entwickelt und an konkreten Au fgaben illustriert. Besonderes Augenmerk wird der Erkl�rung von S ch�lerfehlern beim Umgehen mit algebraischen Ausdr�cken zugewandt .

About the Author

Dr. G�nther Malle ist Professor am Institut f�r Mathematik an der Universit�t Wien.

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