[sandpaper26]

There's a wonderful textbook, I think by Griffiths, that starts from the premise that if you learn the math of quantum mechanics first (i.e. how to actually set up and solve relevant systems of equations) then it's much easier to learn the meaning and implications after. It gives you a lot of problems up front to give you a rock-solid grounding in numerical examples, and only in part 2 does he delve into what it all means.

[vmilner]

https://en.m.wikipedia.org/wiki/Introduction_to_Quantum_Mech...

[mhh__]

His book on elementary particles perhaps?

I think there's a General Relativity book that does the same thing only with the schwarzchild solution, but I'm not sure who wrote it.

[peteradio]

Yes indeed, very early on it shows the equivalence of summing over position/momentum states. Depending on the desired answer one is much easier to calculate.