There are INSTRUCTORS who don't know those things? Incredible!

Be careful about jumping to conclusions.

But C.J., you're the one who said that!

I realize it doesn't mean that ALL instructors are that ignorant.

This reference I thought was particularly well written, an aid to those who
want another resource to teach their students, and something that had all
this material on navigation in one place.

I wasn't criticizing you for posting that info. I wasn't even
criticizing you for making the above statement. I was expressing
dismay at the circumstance you described.

vince norris