What should a teacher do if some students have mastered a standard while others are struggling?

Flexibly grouping students allows a teacher to cater to the varying levels of mastery within the classroom. By organizing students based on their demonstrated understanding of a standard, the teacher can create smaller, targeted groups where instruction can be differentiated. This means that students who have mastered a certain concept can engage in more advanced or enrichment activities, while those who are still struggling receive more focused support tailored to their needs.

This approach not only promotes peer learning but also ensures that instruction is relevant to each student's level, maximizing the effectiveness of teaching time and resources. It fosters a collaborative learning environment where students can help and learn from one another, reinforcing their understanding and skills.