We are intent on ensuring that all students in every class have an opportunity to learn. A key mechanism every teacher has available to assure that every child is learning is up to date data on each child’s performance. Whether standardized, large-scale or in-class generated, the data can provide critical insights to the teacher who is professionally sure how to use it and confident in proceeding. Can we any longer stand by as teachers, administrators or elected officials report that “only x%” of their students did not make standard? Can we standby and not find ways to encourage or persuade our districts and teachers to use the data to determine with precision how to help each child? Can we standby knowing that many teachers simply don’t know how to mine the data they have in their daily planners?