John Hollingsworth is president of DataWORKS Educational Research, a company originally created to use real data to improve student achievement. Although DataWORKS started by analyzing learning outcomes (test scores), it soon refocused towards analyzing learning inputs (classroom instructional practices). DataWORKS now focuses mainly on providing staff development to schools on classroom instruction. John is an active researcher and presenter and has published numerous articles in educational publications. He spends much of his time on the road training teachers.