Re:But there is Vertical movement... (Score 1)

Oh, and by the way: you triggered this with a completely invalid example. Gravity pulls. Low pressure pulls. Horses pull. Tractors pull.

I beg to differ abot the invalid example. Communicate why it is the low pressure pulling and not the high pressure pushing, or possibly a mix of the two, or even a mix of many forces. Why, when we view observe these parcels of air well above the surface, do we see them nearly circling a region of low pressure (geostrophic balance). You follow with some other examples, a horse pulls, which pulls its object directly towards it, just as does a tractor does. I would expect this to cause more confusion to the interested student than anything.

Student: "So you're saying that a low pressure pulls on a parcel of air causing the parcel to circle the low, in the same way a horse pulls a buggy behind it? Why doesn't the buggy circle the horse?"

Gravity is a poor example as it is something humans have yet to fully grasp an understanding of, we use the "anthropomorphism, simile, and metaphor", whatever you'd like to call it because the ultimate cause of the gravitational force remains an open question. We simply cannot at this time formulate a better description.