Ateacher planned to take a class to the art museum for the first time. before the trip, the teacher shared prints illustrating how the artwork in the museum is grouped into historical periods. then the actual visit took place, student saw many of the works of art and were amazed at how readily they could recognize them. the orientation process the teacher employed is referred to as:

An advanced organizer

Explanation:

An advanced organizer is typically related to the term information overloaded. Sometimes we feel overloaded with the study material before an exam. Sometimes learning more than capacity gets overwhelmed and does appear impossible. An advance organizer is a tool that illustrates the topic related to the students and about to learn and the information they already required. It is a phenomenon to link the new information with the old information. The new information is easy to remember. They informed the students about what comes next in the lesson to the students. To show the relationship between ideas that well represented among the students and they help the student in retention their previous information related to the topic.  

answer would be b, a tariffs main purpose is to protect domestic production and jobs.

the answer would be in this answer. someone already asked the question.