I've wondered if maybe we'd be better of NOT teaching sin/cos immediately, and instead giving children Euler's identity first
Sadly, I've got to say, I never use Euler's, always the trig functions to solve real problems (I'm an electrical engineer.)
I've got a 3yrs old and a 2 years old and would love to see them have a better time with and a deeper understanding of math than I did.
Math was (and sometimes still is) a real pain for me, and I've never really understood why, becuase the rules are all very simple.
What I really don't understand is if you're running a a database company, do you really want to trumpet how lousy your internal security is in federal court?
If Microsoft was allowed to make as much money as it should under a properly operating closed source software ecosystem, people from Seattle wouldn't need to sell overpriced coffee to get rich!
We are each entitled to our own opinion, but no one is entitled to his own facts. -- Patrick Moynihan