Complex sentence: In 1922 Burchartz worked with Theo van Doesburg on a still-life course at the Bauhaus in Weimar, a break from his past work and turned him toward the'modern trend', which was from then on expressed in a constructional style.
Split into simpler sentences: In 1922 Burchartz worked with Theo van Doesburg on a still-life course at the Bauhaus in Weimar. This was a break from his past work and turned him toward the'modern trend', which was from then on expressed in a constructional style.