What are three examples of how the songs or dance numbers enhance/move the plot forward in Grease?

Question

What are three examples of how the songs or dance numbers enhance/move the plot forward in Grease?

i need to know as I don’t know how to answer this question.

Answer 1

Here are a couple ideas to get you started-

1. "Summer Nights" gives all the background to set the scene of the main conflict of the movie by depicting the two different versions of what happened between Sandy and Danny over the summer as told to their separate groups of friends. That background is crucial to understanding why Sandy is upset with Danny later on.
2. "Beauty School Drop Out" tells Frenchie's B-story of struggling with where she belongs in life and what do with her future ultimately finding herself back with her friends, a little clueless, but willing to try rather than avoid challenges life throws her way.
3. "Born to Hand Jive" provides an upbeat tempo and quick pace for the school dance where a lot of exposition and plot happens, so we are able to get a lot of information quickly without feeling like too much is being thrown at us because it's all happening within the context of a fun song and dance competition.