Classroom sound can be used to classify teaching practices in college science courses. - Owens MT; Seidel SB; Wong M; Bejines TE; Lietz S; Perez JR; Sit S; Subedar ZS; Acker GN; Akana SF; Balukjian B; Benton HP; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2017)