Therefore, after graduating from middle school, he enrolled in a teacher's college in Karlsruhe because it was his only option for furthering his education.
In 1928, after four years of working as a freelance writer, Krieck was employed at Frankfurt am Main Pedagogical Academy.
The previous day, despite not having attended secondary school and lacking an Abitur, he was appointed Professor Education and Philosophy.
He announced an aggressive cleanup of the school, saying, “It is our collective goal to make a stronghold for the German spirit in the city of Frankfurt.
In 1934, he took the position as chairman of the Philosophy and Education department at Heidelberg University, where he later served as president from April 1937 to October 1938.
His core philosophy caused severe controversy with the National Socialist race theorists in the years 1936–1938, whereupon he left all political and academic offices.
This inheritance includes photo albums, single-frame pictures, a bust, correspondence, and five gramophone records featuring Krieck's 1933 speech.