 Thomas Nielsen, assistant professor at the University of Canberra's education department, said that imaginative teaching approaches used in Waldorf education (drama, exploration, storytelling, routine, arts, discussion and empathy) are effective stimulators of spiritual-aesthetic, intellectual and physical development, expanding "the concept of holistic and imaginative education" and recommends these to mainstream educators.Andreas Schleicher, international coordinator of the PISA studies, commented on what he saw as the "high degree of congruence between what the world demands of people, and what Waldorf schools develop in their pupils", placing a high value on creatively and productively applying knowledge to new realms.This enables "deep learning" that goes beyond studying for the next test.