Maybe, but the same content takes weeks or months to cover in high school. Besides, you can skip to the next level or section when you feel like you get the idea; a feature which classrooms unfortunately lack.

It can be tough to strike a balance when post-docs and 7th graders are both in your target audience. I'm thinking of making two tutorials, one for people who have done this in school once before and one for people who haven't.

Did you try the non-tutorial puzzles?