This publication examines how some States and local educational agencies (LEAs) are implementing teacher evaluations that incorporate measures of student achievement. The information in this publication was collected in response to a technical assistance request to the Reform Support Network from Maryland. Education leaders charged with designing that State's teacher evaluation system were interested in learning more about how States and LEAs are dealing with what some in the field call "lagging indicators"--data that are critical to evaluating teacher effectiveness but are not necessarily obtainable on the same timeline as other measures of teacher performance included in teacher evaluations. The report was presented to the Maryland Department of Education in June 2012.