After reading Chapter 7 and focusing on section 7-7, discuss the 2 main factors

After reading Chapter 7 and focusing on section 7-7, discuss the 2 main factors that influence cognitive development.  How have you seen Vygotsky’s concepts of scaffolding and the zone of proximal development in action?  Give a real life example that relates to these concepts.  Be sure to reference the text!  Your journal entry should be at least 250 words.
I do not have the book. Please refrence and look for other resources related.