Kaiser completed a doctorate in 1986 and a habilitation in 1997 at the University of Kassel.[1] Her doctoral dissertation, Anwendungen im Mathematikunterricht - Konzeptionen und Untersuchungen zur unterrichtlichen Realisierung, was supervised by Werner Blum.[2] She became a professor at Hamburg in 1998, and served as vice dean of education from 2010 to 2016.[1] Since 2005 she has been editor-in-chief of the journal ZDM Mathematics Education,[1][3] and she is the editor or co-editor of 28 books on mathematics education.[4]