It means that you are essentially a historian. You look at the past to figure out things, that way people can lake the future better.
Raising your hand is an important rule in school. This rule was made to keep order in the classroom. If no one raised their hands the classroom would be chaos. No one would be able to learn or hear one another. It would be too loud and no one would know who was speaking. This is why raising your hand is a rule that should be followed.
She will probably will sit in her chair and bang the gravel and say "All shall rise".
While no poetic elements were stated in your question, imagery in poetry affects the mood, feelings, beliefs and expressions of the poem's reader. With vivid imagery techniques, the mood of the poem and the reader's reaction to it are both highly affected by imagery in poetry.
~I hope this helps!~