Mass confusion
Wow, was I glad to find this thread. As another teacher previously posted, there is great potential for confusion on this: a student has observed on countless food packages and other places that a given item's net weight is X lbs or ounces / Y kg or grams. My Cheerios box says...
The path I've followed to start HS teaching has been as follows (from a BS in science & a MS in Chemical Engineering and many years experience as an engineer). I took an introductory education course at a community college. Realizing I know my science well but not much about teaching, I then...