According to Vygotsky, The teacher's structuring process and method used to guide and shape Mary's thinking is referred to as scaffolding.
Vygotsky established an instructional scaffolding concept that centered on teaching practices. He described it as "the responsibility of instructors or a tutor in helping the learner's growth by offering support structures to help the learner move to that next stage in their learning path."
So, as it is in the case of Mary with having trouble understanding how to do a math problem.
The role of the teacher is to guide her by offering support structures to help her get to the next stage.
Learn more about the concept of scaffolding here:
https://brainly.com/question/3706018
