Complex sentence: He did his school in Hamburg and continued his study in Architecture at Braunschweig University of Technology from 1977 to 1984, also he taught from 1989 to 1991 at Aachen's Technical University.
Split into simpler sentences: He did his school in Hamburg and continued his study in Architecture at Braunschweig University of Technology from 1977 to 1984. He taught from 1989 to 1991 at Aachen's Technical University.