Indeed, much of Ritter's writing was based on Pestalozzi's three stages in teaching: the acquisition of the material, the general comparison of material, and the establishment of a general system.
Zapravo su mnogi Ritterovi rukopisi utemeljeni na tri Pestalozzijeva stupnja u učenju: stjecanje gradiva, općenita usporedba gradiva i izgradnja sveobuhvatnog sustava.