Also I'd have them try setting the metronome to half speed so it counts the 2 and the 4. It forces you to internally feel the downbeat. Plus it's nice to switch things up during your practice session.
Half. For instance, if the tune is at 100, set the metronome at 50. And that’s your two and four. The one and the three are in the silence/your body. It ends up at the same tempo.
