"everything was suddenly out of tune like a broken accordion" is a good example of figurative language. It shows the knowledge of the narrator, who must have seen or heard this broken accordion at some point in his life. They seem in shock by the fact that his family is crumbling, hence their use of the word "suddenly." It also shows quite the dramatic persona and exaggeration by saying that 'everything' was suddenly out of tune.
Ans. promote pride in African heritage
1. moral that the poem is trying to teach
2. mood that the poem conveys
Well, for starters, preparing an outline for an essay test usually helps you think through what you want to cover when writing. It's almost exactly like starting with a stick figure when drawing.
Also, when you plan out what you want to write, it'll be easier, and faster to write. Not only that, but your point will be more clear to your audience if you plan out your essay, versus writing what comes to mind.
If you have a better essay, you're more than likely going to achieve a better grade.
Hope this helped!