ISBN-13: 9783319425887 / Angielski / Miękka / 2016 / 51 str.
Overviewing German meta-discourse on theories and mathematics education as a scientific discipline from the 1970s to the 1990s, this book offers two theory strands: a semiotic view related to Peirce and Wittgenstein, and the theory of learning activity by Joachim Lompscher, networked in a case study of learning fractions.