The document discusses differentiated instruction, which is a teaching approach that recognizes students learn in different ways and at different paces. It involves modifying instruction based on student needs using various techniques like flexible grouping, tiered lessons, and choice boards. Key aspects of differentiated classrooms include assessing student needs, providing multiple options for content, process and product, and creating an environment where students feel challenged but supported in their learning. The goal is to maximize each student's growth by meeting them where they are.