What+can+a+teacher+do+to+carry+out+role?

The teaching mantra (according to Vygotsky) should be the question, "What can I do to help you?" When a child hesitates in learning, the teacher should offer encouragement. The concept of scaffolding is based on the concept of the teacher as a guide or facilitator, and is defined as helping and supporting the learner as they stretch their knowledge at the higher end of their Zone of Proximal Development (ZPD).