The Kindergarten at Pratt Institute, like its counterpart at the Astral, was free. Charles Pratt wanted the students at the kindergarten to have living contact with the work which in all likelihood, was to be their future profession.
The kindergarten had two further branches - the Kindergarten Training Department for teachers and a training session for young mothers within the institute, that taught them how to raise their children within Pratt Institute's ideologies.
The kindergarten occupied a small portion of the institute - it was housed on the third floor of the South Hall that also housed the High School, and for a time, also housed the Thrift.
The psychology taught to these children and their mothers was Froebel's "Mutter und Koselieder", which literally meant "Mother and Child". The book spoke about the essential principals of a relationship between a mother and her child that laid down a process of upbringing and education. It addressed individual family members through poetry, pictures etc.