It's about definition of Syllabus and importance of syllabus.

2.  A syllabus is a document that contains important
information about a course.
 A syllabus is an outline and summary

3.  It makes an impression on students
 It conveys information about expectations
 Guide of a course
A syllabus is requires in order to produce efficacy of
two kinds:
 Pragmatic Efficacy: The economy of time and money.
 Pedagogical Efficacy: The economy in the
management of the learning process.

4.  Pragmatic Efficacy
 Pedagogical Efficacy

5.  https://en.wikipedia.org/wiki/Syllabus
 http://www.duq.edu/about/centers-and-
institutes/center-for-teaching-
excellence/teaching-and-
learning/importance-of-the-course-syllabus
 https://dl.sps.northwestern.edu/blog/2016/
03/the-importance-of-a-syllabus/