iPad 3 does not show drawing feature from Notes 4.
I have installed OS X El Capitan. Notes works great on my iPhone 6S but can't draw or use the special tools on my iPad 3!
See the third bullet under "Learn More" in this article:
Upgrade your notes with iOS 9 and OS X El Capitan - Apple Support
"The new sketching feature in Notes is only available on iPhone 5 and later, iPad (4th generation), all iPad Air models, iPad Mini 2 and later, and iPod Touch (6th generation)."