@inbook{48411,
  author       = {{Wessel, Lena}},
  booktitle    = {{Proceedings of the Tenth Congress of the European Society for Research in Mathematics Education (CERME10, February 1 – 5, 2017)}},
  editor       = {{Dooley, T. and Gueudet, G.}},
  keywords     = {{Academic language, relative frequency, scaffolding, design research, trace analysis}},
  pages        = {{1388--1395}},
  publisher    = {{DCU Institute of Education and ERME.}},
  title        = {{{How do students develop lexical means for understanding the concept of relative frequency? Empirical insights on the basis of trace analyses}}},
  year         = {{2017}},
}