erd – How Do i make this ER diagram im new and im confused

So i’m new at designing database and i got my first homework which is the following:

  • Courses, Students, Lecturers
  • Courses have ids, titles, credits,
  • Courses have multiple sections that have time/room and exactly one teacher
  • Must track students’ course schedules and transcripts including grades, semester taken, etc.
  • Must track which classes a lecturer has taught
  • Database should work over multiple semesters

If i’m not wrong on the first one i need to make 3 entities which name Courses, Students and Lectures and on the second one i should make an attribute for Courses and name them ids, titles and credits but then i dont understand the rest of the homework i tried goggling them but i’m so lost, any help would be appreciated.