The formulation of a problem is often more essential than its solution, which may be merely a matter of mathematical or experimental skill.
Victor’s Scrubbing Calculator offers an elegant solution to certain kinds of mathematical problems. But does it help students formulate them? (Like Victor did, turning this into this?) Maybe I’m just whining that it won’t poach an egg or iron the drapes, but if students struggle to formulate problems, is the Scrubbing Calculator any use to them?