Definition of a Derivative - Math?

Up and Running - Opening a Chiropractic Office (Google Affiliate Ad)

I've been doing a bit of math tutoring lately and it got me thinking about branching out and trying an educational Math video on YouTube.  I've been away from formal math classes for about 20 years now but, I still remembered the definition of a derivative so I made a video out of that.  There was a time when I was able to integrate the Gaussian Curve (i.e., Bell Curve) to 1 but, I've since forgotten how to do that.  At least now I won't have to forget this basic math definition.  Below are the five videos with links that I've uploaded so far.

#5 - Definition of a Derivative:  http://youtu.be/3kR7A10hMHU

#4 - Heart Murmurs:  http://youtu.be/sL0vHiXLZ-4

#3 - The Bohr Effect:  http://youtu.be/D_fmHT82mK0

#2 - Collateral Arteries:  http://youtu.be/5B0kK7p2lfc

#1 - Brachial Plexus:  http://youtu.be/gTas7ijp0YE

The analytical data regarding these videos is fascinating.  The Heart Murmur video I uploaded only two days ago has already been viewed in the Czech Republic, Germany and the United Kingdom.  The Bohr Effect video has also been viewed in Hong Kong and Saudi Arabia in addition to the US and UK.

Total viewing time of these videos has been estimated by YouTube at 1,067,452 minutes!  that takes a bit of calculating to put it in more familiar terms but basically, it's a tad over 2 solid years of viewing of the above videos.  The Brachial Plexus video makes up about 960,000 of the viewed minutes.

I will have to get back into the medical videos and have been thinking of doing one on visual fields and maybe a couple more mnemonics.  There's two, off the top of my head for the cranial nerves (CN), one to remember the CN names and the other to help remember if they are motor, sensory or both.  Another mnemonic that comes to mind is for the TCA cycle or the Kreb's cycle.