> You can appreciate Newton's laws in classical mechanics as much as you want but you still need practice if you want to apply the kinematics and force equations in any reasonable amount of time during an exam. Same with Hamiltonians and Lagrangians.
As a general rule there is exactly zero of any of this for the overwhelming vast majority of primary school children in their first 7 years of formal education in either Australia or New Zealand.
We got the same, mention of the stationary-action principle and application of Newtonian, Lagrangian and Hamiltonian equations of motion came some time after sporting milk moustaches in primary school.
As a general rule there is exactly zero of any of this for the overwhelming vast majority of primary school children in their first 7 years of formal education in either Australia or New Zealand.