> Highschool physics especially needs to have 'proper units at every stage of calculation' as part of the test. I can't imagine any HS science class not alread

> Highschool physics especially needs to have 'proper units at every stage of calculation' as part of the test. I can't imagine any HS science class not already doing this. It would be impossible to answer many, if not all, of the questions correctly if you mix units (either unit-kind like mixing time and distance units, or unit-scale like mixing seconds and hours).