Complex sentence: He studied, between 1925 and 1927, at the Technical Academy in Darmstadt and then, till 1930, at the Bauhaus Academy in Dessau: his teachers included both Walter Gropius and Hannes Meyer.
Split into simpler sentences: He studied, between 1925 and 1927, at the Technical Academy in Darmstadt and then, till 1930, at the Bauhaus design school in Dessau. His teachers included both Walter Gropius and Hannes Meyer.