Is there a way to embed (HTML or Canvas feature) a text entry box for students to submit their writing to?

I realize the Assignment page has the ability to select 'text entry', but I am trying to keep students on the same page I've built.

Is it possible?

This came to me as an idea from the Youtube video: "Beyond Canvas Pages: Create Interactive Content That Will Wow Your Students (Maeve Daly)", at which (timestamp 24:47), I saw a text-entry box (see photo attachement).