Friedrich Fröbel is known as the founder of the modern kindergarten and for his development of novel learning materials called Gifts and Occupations. One of the foci of Fröbel's programme was mathematical education, which he addressed and taught through various activities that encouraged the largely implicit transmission of mathematical…

The following paper continues the previous part, and examines the influence of crystallography on Fröbel's conception of mathematics. In this part we focus on yet unpublished material. These unpublished notes of Fröbel underline the visual transfer of drawing and images of crystals, mainly developed by Haüy, which were widespread at the turn of…

This article aims to present the transformations as well as the decline of the Froebelian occupation of paper folding that took place in Great Britain between 1851 and the 1920s. Froebel's original intention was to transmit implicit mathematical knowledge to be learnt by means of folding several shapes. In contrast to his account of paper folding,…