Discrete trial instruction that is delivered from 25 to 40 hours a week is called:

A discreet trial instruction that is delivered from 25 to 40 hours a week is called STRUCTURED DAY.
A discreet trial refers to the act of breaking a task down into small, teachable components  and teaching each aspect separately. The method is typically used to teach children. This type of teaching has the advantage of targeting and strengthened weak areas in students.