The kind of writing they do is it try to explain in English why their incorrect answers doing actually work. It’s a really great way to get them thinking, and to get me some insight into how they understand the concepts.
But also kids just need to practice writing! It’s a superpower! And it’s an important part of gathering info and explaining it to yourself!
It’s made for people of a certain age, and those people don’t go to the movies much I think.