Most class periods (but not all), I will collect your HW at the start of class. 

When I do this, you should:
(1) Print the NOTES and HW to a PDF File.
(2) Get into email and make the subject line "3.7 HW" (or whatever section it is)
(3) Mail the PDF file to me.

Each HW is typically worth 5 points. 

:)
Here is how you earn those 5 points.
Do all problems and show work.
Show work for all problems.
Check your answers against my HW.
Make corrections in RED
(or a different color than you used for your work.)

:(
You will lose points if you...
Turn in your HW late (1/2 credit max)
Don't do all problems.
Don't show all work. (I can tell when you've just copied the answers.)
Don't correct your solutions.

Do an outstanding job, and you may earn a bonus point.