1. Ways to report on empirical research in education

   • Hans Freudenthal

   OriginalPaper Pages: 275 - 303

2. Sex differences in mathematical performance: An historical perspective

   • M. A. (Ken) Clements

   OriginalPaper Pages: 305 - 322

3. Coniques et gravitation universelle

   • E. Castelnuovo
   • D. Gori-Giorgi
   • C. Gori-Giorgi

   OriginalPaper Pages: 323 - 359

4. The learning of process aspects of mathematics

   • A. W. Bell

   OriginalPaper Pages: 361 - 387