Many students struggle with writing, and one of the most difficult parts of an analytical essay is the introduction. Some students may find it easier to wait to write the introduction until after honing in on a great thesis and backing up the argument with analysis. Only then will they have the clarity to craft an interesting, compelling introduction.
As every writing teacher knows, a good introduction hooks the reader and pulls them along so they want to keep reading. This TED-ED video explains why introductions are so important and gives concrete tips and examples for how to write them better. Once students know the rules, it's easier to break them in creative ways that still get the job done.