How Can so Many Students be Invisible?

America’s K-12 education systems place students in grade levels by age and set performance expectations accordingly, using historical, average grade-level performance rather than any specific content students are expected to master. This should not surprise us. Nearly all aspects of America’s schools are built upon age-based grade levels and corresponding grade-level expectations: standards, instruction, curriculum, and assessment, among others. Indeed, the Every Student Succeeds Act (ESSA), like the No Child Left Behind Act before it, has a strong grade-level framework running throughout its nearly 400 pages. The stated importance of “getting students to grade level” reinforces the implicit message that doing so is the primary purpose of schooling. This emphasis ignores an important question: How many students already perform one or more years above grade level on their first day of school?