Question

Jenna, a 10-year-old, has a mental structure, or schema, about what typically happens when you go out to eat in a restaurant. her schema indicates that a host or hostess first leads you to a table, then a waiter or waitress comes to take your order, and so on.

Answer 1

This kind of mental structure is called a script.
The same term is used in the movie and theater industry - actors receive a script which will tell them exactly what they need to do. The same thing goes here - Jenna knows that the people working in the restaurant will behave as if they had a script to follow.