A former mathematics teacher, he teaches elementary and special education mathematics methods courses in the teacher education program at the University of Virginia. Additionally, he teaches graduate level mathematics education course and courses for in-service teachers seeking a mathematics specialist endorsement. His research focuses on equity issues in mathematics education, pre-and in-service teachers’ mathematical knowledge for teaching, and mathematics instructional quality. Berry has extensive experience in classroom observation and has collaborated with other researchers to develop an observation instrument, Mathematics Scan, to examine mathematics teaching quality.