Instructional Video
Khan Academy

Khan Academy: Multivariable Calculus: Position Vector Valued Functions

9th - 10th
Video lesson explaining position vector-valued functions by visualizing and setting one up. [7:45]
Instructional Video
Khan Academy

Khan Academy: Proof of Stokes' Theorem: Stokes' Theorem Proof Part 1

9th - 10th
The beginning of a proof of Stokes' theorem for a special class of surfaces.