1994/16/01

Problems in the Development of Mathematical Knowledge in the Classroom: the Case of a Calculus Lesson

The conception of a limit of function shaped during calculus classes at the first course of studies

The development in 6-9 years old children of an awareness of the double array structure of the row-column arrangement

The diachronic dimension in research on understanding in niathematics - usefulness and limitations of the concept of epistemological obstacle