tip #1. start earlier

tip #2. don't have to rush at the end.

trick #1. tell teacher the truth that people on archinect were not helpful and that was the reason why you did not meet deadline.

trick #2. after telling your teacher the truth, tell him "cheers" as well.

get rid of the macbook and get a pc. 

Pencil?

Pencil....

or learn Revit and boom...

or learn 3dsMax and boom.

or learn AutoCAD and boom.

or Pencil

If there's a section already, wouldn't random collage be the fastest way? Opacity, crop, juxtapose, paint brush here and there. 

If there's no section ready, then just outline as fast as you can and do the above. Panic is an atmosphere of sorts, as well as fear. Who knows, you might surprise yourself with the result.

what the F is an "atmospheric section"

just curious

because it kinda sounds like when you fart in an elevator and split.

there you go, you're welcome.

http://visual.merriam-webster.com/images/earth/meteorology/profile-earths-atmosphere.jpg

that's a real test. don't let acad to cut your section all by itself, drive your software. do it yourself. it will be a real revelation about how you really know what you have in your building. if you did your homework, it will come out reasonably fast. it shouldn't be the last drawing you draw but be a drawing hopefully you used all along and nurtured.

Is this atmospheric enough?

Even the friggin' pink poche' has atmosphere!

charcoal/ pencil goes a long way if you can draw....or water colors...the key word is SHADOW!