Didactics of Arithmetic

Unfinished, unpublished and in the end not even real didactics of arithmetic, that is how Freudenthal looked back upon the manuscript ‘Rekendidaktiek (Didactics of Arithmetic)’. Nevertheless, there are sufficient reasons to devote attention to this manuscript. The most important being that this manuscript is the first of Freudenthal’s documents on didactics of arithmetic to have been preserved. His own description of his activities in this field even justified the conclusion that it was actually the first manuscript he wrote on didactics.