Dörte Haftendorn
Dörte Haftendorn (born March 25, 1948) is a German mathematician, mathematics education, mathematics educator, and textbook author who works as a professor at Leuphana University of Lüneburg. Education and career Haftendorn earned her PhD in 1975 from the Clausthal University of Technology. Her dissertation, ''Additiv kommutative und idempotente Halbringe mit Faktorbedingung'' [''Additive, commutative, and idempotent semirings with the factor condition''], concerned the theory of semirings and was supervised by Hanns J. Weinert. She taught at the Johanneum gymnasium in Lüneburg from 1975 until 2002, when she became a professor at Leuphana University of Lüneburg. Books Haftendorn is the author of two German-language mathematics textbooks. ''Mathematik sehen und verstehen'' [Seeing and understanding mathematics] (Spektrum, 2010; 2nd ed., 2015) is a broad overview of mathematics for a popular audience, stemming from Haftendorn's "mathematics for all" lecture series. ''Kurven erk ...
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