Main details are a main thing that happens in the piece of writing and supporting details are what support the main ones.
Explanation:
What was the excerpt? Or at least the sentance it's in?
If the person in question has been nicer to Scout upon meeting her she would have felt sorry for her
Explanation:
I would say the main headings and key concepts in a reading assignment would help one to grasp what the topic is basically about ie paying attention to these two things would be an essential part of a study guide so that the main meaning of the writing could be grasped.
