ropius worked with De Stijl, the Dutch creative group that includes Piet Mondrian, Theo van Doesburg, and
J. J. P. Oud, and the Bauhaus became strongly involved with ideas of neoplasticism, De Stijl’s theory of the equality of opposites: verticals and horizontals, vacancies and masses, black and white, seen as representing the opposition of natural forces.

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Herbert Bayer, design rough for a poster. 1923, tempera and Indian ink over pencil on paper, 43.6×31.9 cm. Courtesy of the Bush-Reisigner Museum, Harvard University Art Museums, gift of Herbert Bayer.
Wisely, the facet of neoplasticism which most interested the Bauhaus was its aesthetics –abstraction, minimalism, primary colors (red, blue, yellow), basic forms, straight lines – rather than its mysticism. Johannes Itten also emphasized the notion of oppositions (or, in his terminology, “contrasts”) though he argued them from a different perspective. At Gropius’ invitation, Lothar Schreyer began teaching at the Bauhaus, including a course on “Form.”
Schreyer founded the Bauhaus theater studio but his name was virtually erased from the annals of the school due to his Nazi sympathies. Nonetheless, theater became one of the school’s great strengths, especially under the direction of its next leader, Oskar Schlemmer. Like many Bauhaus teachers Schreyer was deeply influenced by Expressionism, which is evident in his theater work.