In the Vygotsky's approach to development and learning:

-Zone of proximal development: Tasks that learner can't accmoplished alone yet, but can accomplish with the help of other skilled other.

-Scaffolding: Provide a lot of concrete and support to help learner get to the next level, But also start to withdraw support when they get better at it.

-Intersubjectivity: Teacher and learner ideas are combined to develop a new, sharing understanding.

Imagine you want to teach a child to solve simple math problems.( maybe addition equation or something like that)

How would you use the following strategies/concepts, described by Vygotsky, to help the child learn to solve these problems: zone of proximal development, scaffolding, intersubjectivity