Rigor doesn't simply mean giving students more or harder work. Instead, it's the result of work that challenges students' thinking in new and interesting ways.
Rigor is the result of work that challenges students’ thinking in new and interesting ways. It occurs when they are encouraged toward a sophisticated understanding of fundamental ideas and are driven by curiosity to discover what they don’t know.
Rigor is not defined by the text — it comes from what students do. It is not standard across a curriculum — it is individual to each student’s needs. It is not quantified by how much gets crammed into a school day — it is measured in depth of understanding.
Rigor is a result, not a cause.