I'm taking a Multivariable Calculus class and my teacher has just started Differential forms. It is not making a lot of sense, though. I have tried reading "Geometric Approach to Differential forms" by David Bachman and I have understood a bit, but I would like to get more feel of it.
I just want an introduction to the subject, not too much detail. I want to know if there are any online lectures I can see or a better book I can read from.
The advice given elsewhere for doing math homework would seem (to me) too apply here as well. .. Namely, step 1) write down the problem. Step 2) cry.
That being said, differential forms probably aren't any more difficult than any other topics in mathematics (with the possible exception of tensors; which as I recall are closely related)...
Spivak's Comprehensive introduction to differential geometry is one source I remember. ..
Or maybe try guilleman and pollack's differential topology, or even Marsden and tromba's vector calculus has a section on them, I think...