International comparisons in mathematics education: an overview
  The paper opens with an overview of the discussion of international comparisons (including goals) in mathematics education. Afterwards, the two most important recent international studies, the PISA Study and TIMSS-Repeat, are described. After a short description of the qualitative-quantitative debate, a qualitatively oriented small-scale study is described. The paper closes with reflection on the possibilities and limitations of such studies. 
Gabriele Kaiser, Frederick K. S. Leung, Thomas Romberg, Ivan Yaschenko