This document discusses grading in a differentiated classroom. It begins by outlining traditional grading approaches like percentage, letter, norm-referenced, and mastery grading. It notes that a modification is needed to better accommodate student differences. The key principles of grading in a differentiated classroom are to clearly communicate standards and expectations, and provide accurate reporting of student progress and achievement against defined standards. Approaches discussed include portfolio assessment, a common grading scale, dual reporting of achievement and progress, communicating with parents, and various record keeping methods like gradebooks, student work folders, and activity charts.