Martha is teaching her third graders some typing skills and challenges them to complete a task she knows will be difficult but feels confident they can handle if they work in groups. Martha is relying on which psychological concept?

The correct answer is A. the zone of proximal development.

The zone of proximal development (ZPD) is a concept developed by psychologist Lev Vygotsky. It refers to the range of tasks that a learner can perform with guidance but cannot yet perform independently. By encouraging her students to work in groups, Martha is providing the support they need to tackle challenges that may be just beyond their current abilities, promoting collaborative learning and development.

If you have any further questions or need more assistance, feel free to ask!