and your choice of the two would put you in very high demand indeed. That’s the sort of dual certification that makes schools fight over you and offer you very sweet incentives.

The only thing that would be any better would be those two (math and physics) AND being a football coach with a winning record… ☺

If you’re good at both of those then go for the dual subject certification. You’d be marketable in any state.

Generally speaking though, math teachers are in above average demand so you should be okay.

It would serve you well to add an endorsement in a special ed field, as well.