The text book industry wants you to think that AI learning is an inferior shortcut to books/ebooks/multiple choice quizzes on computers/printouts.
The teaching tools should be AI. The learning tools should be AI based. The grading system should be AI based.
Regurgitating an answer for a % grade is old fashioned.
AI certifying that you actually learned Calculus and are ready for the next level is much better signal than any % score.