Mathematisches Wissen, erworben in empirischen Theorien
  Following the processing of individual topics of elementary school mathematics as content of empirical theories the question is adressed wether the associated conception of mathematics finds itself under established concepts, and how it can be supported. A position of learning psychology and a teaching concept will be used that fit in the position of mathematics and of the learning of mathematics developed here. 
Hans Joachim Burscheid, Horst Struve
math.HO