In computer science, we have classes on memorizing/implementing various algorithms so that we may understand their behavior. Could anyone name the reason why grade school students memorize and execute the long division algorithm? I certainly hadn't used long division since grade school.
Grade school is years long, so a skill you're supposed to know in 3rd grade is one that you need to be able to faithfully execute for the next 3 years. The fact that you'll get a calculator in middle school doesn't help you if you're struggling through 4th and 5th grade.
