Even today though you’re still taught arithmetic without a calculator. My kids have spelling words even though we have spell check.
Why? Because otherwise they’d have no idea if the answer provided to them is “correct”. As the saying goes, garbage in garbage out. You type the wrong numbers into the calculator ? How would you know the answer is also wrong unless you knew “about” what the answer should be?
Why? Because otherwise they’d have no idea if the answer provided to them is “correct”. As the saying goes, garbage in garbage out. You type the wrong numbers into the calculator ? How would you know the answer is also wrong unless you knew “about” what the answer should be?